Richest Countries in the World 2026 | HelloSafe Prosperity Index
GDP per capita is the ranking everyone cites. It is also the easiest to manipulate.
Ireland makes the point perfectly. With a GDP per capita of $150,865 in purchasing power parity, the country ranks among the most "productive" economies on earth according to the IMF. In reality, a large share of that figure belongs to Apple, Google and Pfizer, not to Irish households. The gap between apparent output and the actual income of residents exceeds $70,000 per person.
To work around that distortion, HelloSafe built the HelloSafe Prosperity Index 2026: a ranking of 31 advanced economies based on five official indicators drawn from the IMF, the World Bank, the UNDP and the OECD. One score out of 100. Data verified source by source, year by year. With regional panels for Africa, Latin America and Asia, the index covers more than 50 countries worldwide.
- 🥇 Norway ranks 1st with a score of 77.65/100: the world’s highest GNI and the most balanced social model in the panel.
- 🇮🇪 Ireland 2nd (75.06): despite an artificially inflated GDP, its real gross national income places it 7th in the world.
- 🇱🇺 Luxembourg 3rd (74.39): outside the top spot for the first time since the index was created.
- 🇮🇸 Iceland 5th (72.23): the world’s highest HDI and a relative poverty rate of just 5%.
- 🇸🇬 Singapore 6th (66.43): penalised by the highest income inequality in the panel, despite a record GDP.
- 🇶🇦 Qatar 11th (50.60): the lowest HDI in the panel and heavily concentrated income distribution.
- 🇺🇸 United States 17th (43.39): genuine economic strength, but relative poverty and inequality among the highest in the panel.
- 🇨🇿 Czech Republic 19th (38.49), ahead of France (20th, 38.12) thanks to the most equal income distribution in the entire Eurostat 2024 dataset.
Rather than defining the richest country in the world by economic output alone, the HelloSafe Prosperity Index measures overall prosperity by combining economic power, human development and income distribution. Indicators such as the HDI and income inequality allow an assessment of real quality of life and how broadly wealth is shared across each country.
Each indicator is weighted according to its impact on long-term prosperity. This multidimensional approach offers a more balanced comparison between nations, to better understand which countries are truly the wealthiest, not just on paper, but in the daily lives of their inhabitants.
For a detailed explanation of the weighting system and score construction, see the methodology section at the bottom of this page.
Ranking: the 20 richest countries in the world (prosperity score 2026)
The HelloSafe Prosperity Index 2026 reveals a sharp concentration of prosperity among advanced European economies. Norway takes first place globally for the first time, with a score of 77.65, driven by the highest GNI in the panel combined with exemplary social indicators. Luxembourg, long the leader, drops to third: its economic strength remains extraordinary, but its social profile lags behind the Nordic champions.
Ireland (2nd, 75.06) and Switzerland (4th, 72.46) complete an exclusively European podium. Iceland (5th, 72.23) stands out with the world's highest HDI and the lowest relative poverty rate in the panel. Singapore (6th) is the only non-European country in the top 7, despite an unequal income distribution that gives it a zero score on that indicator.
The United States rank 17th and Canada 18th, reflecting genuine economic strength but weaker results on inequality and social indicators. France closes the top 20 with 38.12 points, illustrating a solid level of prosperity that nonetheless falls well short of Northern Europe. The Czech Republic (19th, 38.49) edges ahead of France despite a far lower GNI, driven by the most equal income distribution and lowest relative poverty rate of any country measured by Eurostat in 2024.
This ranking confirms that being the richest country in the world is not just about income or GDP, but about how wealth translates into quality of life, social cohesion and long-term development.
Rank | Country | Region | Prosperity score (0–100) |
|---|---|---|---|
1 | 🇳🇴 Norway | Europe | 77.65 |
2 | 🇮🇪 Ireland | Europe | 75.06 |
3 | 🇱🇺 Luxembourg | Europe | 74.39 |
4 | 🇨🇭 Switzerland | Europe | 72.46 |
5 | 🇮🇸 Iceland | Europe | 72.23 |
6 | 🇸🇬 Singapore | Asia | 66.43 |
7 | 🇩🇰 Denmark | Europe | 65.78 |
8 | 🇳🇱 Netherlands | Europe | 58.17 |
9 | 🇧🇪 Belgium | Europe | 54.83 |
10 | 🇸🇪 Sweden | Europe | 54.62 |
11 | 🇶🇦 Qatar | Middle East | 50.60 |
12 | 🇩🇪 Germany | Europe | 50.41 |
13 | 🇦🇪 United Arab Emirates | Middle East | 50.22 |
14 | 🇫🇮 Finland | Europe | 49.13 |
15 | 🇦🇺 Australia | Oceania | 46.24 |
16 | 🇦🇹 Austria | Europe | 43.46 |
17 | 🇺🇸 United States | North America | 43.39 |
18 | 🇨🇦 Canada | North America | 39.44 |
19 | 🇨🇿 Czech Republic | Europe | 38.49 |
20 | 🇫🇷 France | Europe | 38.12 |
The richest countries in Europe in 2026
The European results of the HelloSafe Prosperity Index 2026 confirm it: prosperity concentrates first in Northern and Western Europe, with an unprecedented shake-up at the very top.
Norway takes the top European spot for the first time, ahead of Ireland (75.06) and Luxembourg (74.39). These leading countries combine exceptional economic performance with social indicators among the best in the world.
The Nordic countries confirm their strength. Iceland (72.23) and Denmark (65.78) benefit from economies anchored in advanced social systems and some of the highest human development levels in the world. Belgium (54.83) moves up several places thanks to one of the most balanced income distributions in Western Europe, measured at 24.6 by Eurostat (income year 2023 data).
With a prosperity score of 38.12, France ranks 14th in Europe. Its infrastructure and social protection system are among the best in the world, but economic dynamism has plateaued and the gap with the Nordic leaders remains pronounced. One place above it, the Czech Republic (13th in Europe, 19th globally) achieves a near-identical score of 38.49 despite a GNI less than two-thirds of France's, driven entirely by the most equal income distribution in Eurostat's 2024 dataset (23.7) and a relative poverty rate of just 6.4%.
At the other end of the panel, Spain (22.30) and Estonia (15.23) close the ranking. These scores reflect income levels still lagging behind and, in Spain's case, a high relative poverty rate.
European rank | Country | Prosperity score (0–100) |
|---|---|---|
1 | 🇳🇴 Norway | 77.65 |
2 | 🇮🇪 Ireland | 75.06 |
3 | 🇱🇺 Luxembourg | 74.39 |
4 | 🇨🇭 Switzerland | 72.46 |
5 | 🇮🇸 Iceland | 72.23 |
6 | 🇩🇰 Denmark | 65.78 |
7 | 🇳🇱 Netherlands | 58.17 |
8 | 🇧🇪 Belgium | 54.83 |
9 | 🇸🇪 Sweden | 54.62 |
10 | 🇩🇪 Germany | 50.41 |
11 | 🇫🇮 Finland | 49.13 |
12 | 🇦🇹 Austria | 43.46 |
13 | 🇨🇿 Czech Republic | 38.49 |
14 | 🇫🇷 France | 38.12 |
15 | 🇬🇧 United Kingdom | 38.05 |
16 | 🇸🇮 Slovenia | 35.68 |
17 | 🇲🇹 Malta | 34.40 |
18 | 🇮🇹 Italy | 25.22 |
19 | 🇪🇸 Spain | 22.30 |
20 | 🇪🇪 Estonia | 15.23 |
The richest African countries in 2026: Seychelles, Mauritius and Algeria lead
According to the HelloSafe Prosperity Index 2026, Seychelles take first place in Africa with a score of 98.09 within the regional panel, ahead of Mauritius (77.09) and Algeria (54.24). This ranking applies the same five-indicator methodology as the global panel: GDP in PPP, GNI, HDI, income distribution and relative poverty rate. Scores are normalised within the African panel and are therefore not directly comparable to the numerical values of the global ranking.
Seychelles dominate thanks to a GDP in PPP of $42,110 per capita, the highest on the continent by a wide margin, combined with the best HDI in Africa (0.848) and a contained income distribution. Mauritius follows with a GNI of $12,570 and an HDI of 0.806: the only two African countries classified as "very high" human development by the UNDP. Algeria claims third place through the most equal income distribution in the African panel. It is that narrow gap between top and bottom earners that offsets a still-modest GNI.
Botswana (8th) and South Africa (10th) pay the price of their structural inequalities. South Africa has the world's most concentrated income distribution and an estimated relative poverty rate of 50%, dragging it down despite a GDP higher than several better-ranked countries. Botswana shows the same profile: a well-resourced economy, but heavily concentrated income. This ranking illustrates the persistent gap between wealth creation and its real distribution among households.
African rank | Country | Prosperity score (0–100) |
|---|---|---|
1 | 🇸🇨 Seychelles | 98.09 |
2 | 🇲🇺 Mauritius | 77.09 |
3 | 🇩🇿 Algeria | 54.24 |
4 | 🇬🇦 Gabon | 52.45 |
5 | 🇪🇬 Egypt | 52.17 |
6 | 🇱🇾 Libya | 46.61 |
7 | 🇹🇳 Tunisia | 45.19 |
8 | 🇧🇼 Botswana | 41.92 |
9 | 🇲🇦 Morocco | 36.73 |
10 | 🇿🇦 South Africa | 26.53 |
The richest countries in Latin America in 2026: Uruguay, Chile and Panama lead
In Latin America, the HelloSafe Prosperity Index 2026 places Uruguay at the top for the first time, with a score of 85.87, ahead of Chile (85.10) and Panama (77.19). Same five-indicator methodology, same intra-panel normalisation: scores reflect each country's relative position within the region, not a direct comparison with the global ranking.
Uruguay leads thanks to the highest GNI in the region ($18,500 per capita, World Bank 2024), the most equitable income distribution (40.0) and the lowest relative poverty rate (14%). Chile, in second, has the highest HDI in Latin America (0.878) but a slightly more pronounced income gap (43.0). Panama (3rd) benefits from the region's highest GDP in PPP ($37,100), but its income inequality of 49.7, the highest of the top three, caps its score.
Brazil (9th, 33.94) and Ecuador (10th, 27.08) close the regional ranking of major economies. Brazil combines some of the panel's highest income inequality (51.6) with a relative poverty rate exceeding 29%. Mexico, 7th despite its economic weight, reflects the same gap between aggregate output and the real sharing of income.
Latin American rank | Country | Prosperity score (0–100) |
|---|---|---|
1 | 🇺🇾 Uruguay | 85.87 |
2 | 🇨🇱 Chile | 85.10 |
3 | 🇵🇦 Panama | 77.19 |
4 | 🇦🇷 Argentina | 66.13 |
5 | 🇨🇷 Costa Rica | 62.95 |
6 | 🇩🇴 Dominican Republic | 53.53 |
7 | 🇲🇽 Mexico | 45.62 |
8 | 🇵🇪 Peru | 41.90 |
9 | 🇧🇷 Brazil | 33.94 |
10 | 🇪🇨 Ecuador | 27.08 |
The richest countries in Asia in 2026: Singapore and Qatar lead
The ranking of the richest countries in Asia puts two radically different models face to face. Gulf states: very high incomes driven by oil revenues, lower human development, heavily concentrated wealth. East Asian economies: Singapore, South Korea, Israel, prosperity built on education, productivity and innovation.
Singapore leads the richest countries in Asia with a score of 66.43. But its income distribution, the most unequal in the global panel (45.9), gives it a zero score on that indicator. Qatar (11th globally, 2nd in Asia) combines a GDP of $131,402 with the lowest HDI in the panel (0.886). The UAE (13th, 50.22), South Korea (25th, 31.96), Japan (27th, 24.94), Israel (28th, 22.78) and Saudi Arabia (30th, 19.37) complete the Asian picture.
Asian rank | Country | Prosperity score (0–100) |
|---|---|---|
1 | 🇸🇬 Singapore | 66.43 |
2 | 🇶🇦 Qatar | 50.60 |
3 | 🇦🇪 United Arab Emirates | 50.22 |
4 | 🇰🇷 South Korea | 31.96 |
5 | 🇯🇵 Japan | 24.94 |
6 | 🇮🇱 Israel | 22.78 |
7 | 🇸🇦 Saudi Arabia | 19.37 |
HelloSafe Prosperity Index 2026: Methodology
Objective of the study
The HelloSafe Prosperity Index was designed to measure the real prosperity of nations: not what a country produces, but what its inhabitants actually experience day to day. Unlike rankings based solely on GDP, our index integrates quality of life, income distribution and the capacity of an economy to translate its wealth into concrete improvements in its population's living standards.
Each indicator is weighted according to its impact on long-term prosperity. GDP per capita in PPP accounts for 30% of the score: it is the raw economic anchor. GNI per capita adds 20%, capturing what residents actually earn, net of profits from multinationals registered on the territory. A correction that changes everything for countries like Ireland or Luxembourg. HDI, income inequality and relative poverty complete the picture at 20%, 15% and 15% respectively.
Indicators used
Indicator | Official source | Weight | Edition used |
|---|---|---|---|
GDP per capita in PPP | IMF, World Economic Outlook, Oct. 2025 | 30% | 2026 estimates |
GNI per capita (Atlas method) | World Bank, WDI | 20% | 2023–2024 |
Human Development Index (HDI) | UNDP, Human Development Report 2025 | 20% | 2023 data |
Income inequality (Gini index) | Eurostat ilc_di12 / World Bank PIP / OECD IDD | 15% | 2024 (Eurostat) or latest available year |
Relative poverty rate | OECD IDD / CEPALSTAT / estimates | 15% | 2021–2024 |
Normalisation follows the min-max method: each indicator is rescaled to a 0–100 range within the panel, then weighted. Income inequality and the poverty rate are inverted: the more equal a country, the higher it scores. This approach is identical to the one used by the UNDP to calculate the HDI. Regional rankings (Africa, Latin America, Asia) are normalised within their own regional panel and their scores are therefore not directly comparable to the numerical values of the 31-economy global ranking.
The gross national savings rate (5% in the previous edition) has been removed from the index. This macroeconomic flow artificially favoured rentier states: Qatar posted a savings rate of 57% without this reflecting the real prosperity of the population. Its removal gives more weight to relative poverty (15% instead of 10%) and makes the ranking more robust to academic criticism. The top 5 is stable across all 7 alternative weighting configurations tested. The Africa and Latin America regional rankings are now calculated using this same five-indicator methodology.
Income inequality data sources by country
To measure income inequality, we use the most recent and best-harmonised source available for each country. For European economies covered by the EU-SILC survey, Eurostat data (indicator ilc_di12, equivalised disposable income) is the reference source. For other countries we use the World Bank (Poverty and Inequality Platform) or the OECD (Income Distribution Database).
Country | Source | Value | Year |
|---|---|---|---|
Belgium | Eurostat ilc_di12 | 24.6 | 2024 (inc. yr 2023) |
Germany | Eurostat ilc_di12 | 29.5 | 2024 (inc. yr 2023) |
Austria | Eurostat ilc_di12 | 28.4 | 2024 (inc. yr 2023) |
Switzerland | Eurostat ilc_di12 | 31.0 | 2024 (inc. yr 2023) |
Denmark | Eurostat ilc_di12 | 28.6 | 2024 (inc. yr 2023) |
Slovenia | Eurostat ilc_di12 | 23.8 | 2024 (inc. yr 2023) |
Czech Republic | Eurostat ilc_di12 | 23.7 | 2024 (inc. yr 2023) |
Other EU countries | World Bank PIP | See spreadsheet | 2019–2021 |
Norway, Iceland | World Bank PIP / OECD | 25.0 / 26.1 | 2019 / 2017 |
United States, Israel | World Bank PIP | 39.8 / 38.4 | 2021 |
Qatar | World Bank PIP | 41.1 | 2007 ⚠️ |
Japan | World Bank PIP | 32.9 | 2013 ⚠️ |
Saudi Arabia | World Bank PIP | 45.9 | 2013 ⚠️ |
Singapore | National survey (DOS) | 45.9 | 2017 ⚠️ |
Algeria | World Bank PIP | 27.6 | 2011 ⚠️ |
Egypt | World Bank PIP | 28.5 | 2021 |
Tunisia | World Bank PIP | 33.7 | 2021 |
Mauritius | World Bank PIP | 36.8 | 2017 ⚠️ |
Seychelles | World Bank PIP | 32.1 | 2018 |
Gabon | World Bank PIP | 38.0 | 2017 ⚠️ |
Morocco | World Bank PIP | 39.5 | 2013 ⚠️ |
Botswana | World Bank PIP | 54.9 | 2015 ⚠️ |
Namibia | World Bank PIP | 59.1 | 2015 ⚠️ |
South Africa | World Bank PIP | 63.0 | 2014 ⚠️ |
Chile | World Bank PIP | 43.0 | 2022 |
Uruguay | World Bank PIP | 40.0 | 2024 |
Panama | World Bank PIP | 49.7 | 2024 |
Argentina | World Bank PIP | 42.4 | 2024 |
Mexico | World Bank PIP | 43.5 | 2022 |
Brazil | World Bank PIP | 51.6 | 2023 |
Colombia | World Bank PIP | 53.9 | 2023 |
Peru | World Bank PIP | 40.1 | 2024 |
Costa Rica | World Bank PIP | 45.8 | 2024 |
Ecuador | World Bank PIP | 45.2 | 2024 |
Paraguay | World Bank PIP | 44.2 | 2024 |
Bolivia | World Bank PIP | 42.1 | 2023 |
⚠️ For the flagged countries, no more recent data is available in standardised international databases. These countries do not participate in the EU-SILC survey and do not publish harmonised data following the OECD IDD methodology. Since this indicator accounts for 15% of the final score, the impact of this data lag on the ranking remains limited.
Reading the results
- Below 30: very low prosperity. Precarious economic and social conditions, low incomes, high poverty rates, heavily concentrated income.
- Between 30 and 50: low to intermediate prosperity. Real economic development but living standards still lagging. Inequality and poverty widespread.
- Between 50 and 65: strong prosperity. High living standards, solid infrastructure, relatively equitable distribution of resources.
- Above 65: very strong prosperity. Dynamic economies, low poverty, well-distributed income. These countries rank among the most prosperous in the world across all measured dimensions.
Recognised limitations
- GDP bias (Ireland, Luxembourg). Ireland's GDP is inflated by multinational profits. GNI (Atlas method) partly corrects this bias. Ireland remains 2nd with a real GNI of $80,650, the 7th highest in the world.
- Outdated inequality data. For Japan (2013), Qatar (2007), Saudi Arabia (2013), Singapore (2017), Algeria (2011) and several African countries, World Bank data is the only source available in standardised databases. Impact is limited: this indicator accounts for 15% of the final score.
- Estimated poverty rates. For African countries and for Singapore, Qatar, the UAE and Saudi Arabia, the relative poverty rate is an estimate, as these countries do not participate in the OECD IDD survey or CEPALSTAT.
- Editorial weightings. The weights (30/20/20/15/15) are based on editorial judgement, not econometrics. Robustness tested across 7 alternative configurations: the top 5 is stable in all of them.
- Limited panel. 31 advanced economies for the global ranking. Regional rankings cover countries for which all five indicators are available.
- Regional normalisation. Scores for regional panels are calculated by min-max normalisation within each panel. They measure relative position within the region, not an absolute level comparable to the global ranking.
Countries not included in this study
The following countries were excluded due to insufficient or unreliable data: 🇦🇩 Andorra, 🇰🇵 North Korea, 🇨🇺 Cuba, 🇱🇮 Liechtenstein, 🇲🇨 Monaco, 🇸🇸 South Sudan, 🇹🇼 Taiwan. Micro-states (Liechtenstein, Monaco) were excluded because their data are not representative of an ordinary national economy.
Conclusion
The HelloSafe Prosperity Index 2026 offers an honest reading of global wealth by combining economic and social indicators. Being the richest country in the world is not just about producing a lot. It is measured by how that wealth concretely translates into the daily life of the ordinary citizen. In 2026, the answer is Norway.
Data may be freely cited with the credit HelloSafe Prosperity Index 2026, Antoine Fruchard, co-founder of HelloSafe. The full source spreadsheet with all raw values, normalised scores and sources is available on request.
FAQ
According to the HelloSafe Prosperity Index 2026, the richest country in the world is Norway, with a score of 77.65/100. Norway combines the highest GNI in the panel ($98,170 per capita, World Bank 2024), an HDI of 0.970 (co-first in the world with Switzerland), income inequality among the lowest in the panel and a relative poverty rate of 11%. This result reflects both economic strength and social equity, the two pillars of our definition of prosperity.
The global top 10 according to the HelloSafe Prosperity Index 2026 is: 1. Norway (77.65), 2. Ireland (75.06), 3. Luxembourg (74.39), 4. Switzerland (72.46), 5. Iceland (72.23), 6. Singapore (66.43), 7. Denmark (65.78), 8. Netherlands (58.17), 9. Belgium (54.83), 10. Sweden (54.62). These ten countries combine high incomes, advanced human development and moderate inequality, with the exception of Singapore, penalised by the most unequal income distribution in the panel.
Norway holds the world’s highest GNI per capita ($98,170, World Bank 2024), an HDI of 0.970 (co-first with Switzerland), income inequality among the lowest in the panel and a relative poverty rate of 11%. Luxembourg has a very high GDP and GNI, but its HDI (0.922) lags well behind the Nordic leaders, and its income is more concentrated. Norway outperforms on the social dimensions, which is enough to place it first in our weighted calculation.
Its GDP in PPP ($150,865) is indeed inflated by multinational profits from Apple, Google and Pfizer, which do not directly enrich Irish households. Our index incorporates GNI per capita (Atlas method, World Bank), which corrects this distortion: Ireland’s GNI is $80,650 (World Bank 2024), the 7th highest in the world. That figure reflects some of the highest real household incomes on earth. Ireland is a genuinely prosperous country, regardless of its inflated GDP.
Our index measures prosperity for the population as a whole, not just aggregate economic output. The United States has 18% relative poverty according to the OECD, the highest rate in the panel, and heavily concentrated income. American wealth is real but deeply unequal. A country where nearly one in five adults lives below the relative poverty line cannot rank among the ten most prosperous societies in the world under a balanced measure.
The Czech Republic (38.49) edges ahead of France (38.12) by just 0.37 points, driven by three of the five indicators. It has the lowest income inequality in the entire Eurostat 2024 dataset (23.7 versus 31.5 for France) and a relative poverty rate of just 6.4% versus 8.3%. Both indicators carry 15% of the score. France leads on GNI ($45,160 versus $29,560) and HDI (0.920 versus 0.915), but not by enough to offset the social gap. This is exactly the type of result the index is designed to surface: a highly egalitarian society with low poverty outranks a nominally larger but more unequal one.
The top 5 richest countries in Europe according to the HelloSafe Prosperity Index 2026 are: 1. Norway (77.65), 2. Ireland (75.06), 3. Luxembourg (74.39), 4. Switzerland (72.46), 5. Iceland (72.23). The United Kingdom ranks 15th in Europe with a score of 38.05. Spain (22.30) and Estonia (15.23) close the European panel analysed.
According to the HelloSafe Prosperity Index 2026, the richest country in Africa is the Seychelles, with a score of 98.09 within the African panel. They combine the highest GDP in PPP on the continent ($42,110 per capita, IMF Oct. 2025), the best HDI in Africa (0.848, UNDP 2025) and a contained income distribution. Mauritius comes second (77.09), supported by a GNI of $12,570 and an HDI of 0.806. Algeria completes the podium (54.24) thanks to the most equal income distribution in the African panel.
According to the HelloSafe Prosperity Index 2026, the richest country in Latin America is Uruguay, with a score of 85.87 within the regional panel. Uruguay combines the highest GNI in the region ($18,500, World Bank 2024), the most equitable income distribution and the lowest relative poverty rate (14%, CEPALSTAT). Chile is very close in second (85.10), with the highest HDI in Latin America (0.878). Panama completes the podium (77.19) thanks to the region’s highest GDP in PPP ($37,100).
Qatar has a GDP per capita of $131,402 in PPP, among the highest in the world. But our index evaluates overall human prosperity, not economic output alone. Qatar scores the lowest HDI in the panel (0.886, UNDP 2025), and its income is heavily concentrated (data from 2007, the only figures available in international databases). These very weak scores on the human and social dimensions push Qatar down to 11th place despite its raw wealth.
GDP per capita measures the value of everything produced on a country’s territory, including by foreign companies. It can be artificially inflated by multinational tax registrations, which is the case for Ireland and, to a lesser extent, Luxembourg. GNI per capita (Gross National Income, World Bank Atlas method) measures what residents actually earn, including income from labour and capital received from abroad and deducting that transferred to non-residents. For real prosperity rankings, GNI is the reference indicator.
The IMF publishes its estimates in October, the World Bank its GNI data in July, the UNDP its HDR in spring, Eurostat its EU-SILC data in July and the OECD its IDD on an ongoing basis. A full update is feasible every autumn. The calculation spreadsheet and raw data, with sources and reference years cell by cell, are available for download on this page.
