Adjusted low to high socio-economic parity index for achieving a minimum proficiency level in reading and mathematics (ratio) by country
Countries reporting
48
Highest
0.9769
Japan
Lowest
0.1449
Singapore
Median
0.509
Years covered
24
2000–2023
Data points
364
What the numbers show
Adjusted low to high socio-economic parity index for achieving a minimum proficiency level in reading and mathematics (ratio) is currently reported for 48 countries. The highest value is 0.9769 in Japan; the lowest is 0.1449 in Singapore.
The median across all reporting countries is 0.509, and the mean is 0.4775.
The gap between the highest and lowest reporting country is a factor of about 7.
Over the past decade 9 countries rose and 39 fell. The largest increase was in Chile (up 43.6%), and the largest decrease in Singapore (down 83.6%).
Adjusted low to high socio-economic parity index for achieving a: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Japan | 0.9769 | 2023 | up 15.3% | rising |
| 2 | Russian Federation | 0.7556 | 2018 | up 22.3% | rising |
| 3 | Republic of Korea | 0.6611 | 2022 | down 25.7% | falling |
| 4 | Latvia | 0.6471 | 2022 | down 9.5% | flat |
| 5 | Italy | 0.6389 | 2023 | up 6.2% | rising |
| 6 | Ireland | 0.6294 | 2022 | down 11.6% | falling |
| 7 | Canada | 0.624 | 2022 | down 23.5% | falling |
| 8 | Poland | 0.6201 | 2022 | down 16.2% | rising |
| 9 | Spain | 0.6044 | 2022 | down 4.0% | flat |
| 10 | Portugal | 0.5978 | 2022 | up 0.1% | rising |
| 11 | Finland | 0.5967 | 2022 | down 27.7% | falling |
| 12 | Luxembourg | 0.5948 | 2018 | down 2.0% | rising |
| 13 | Oman | 0.593 | 2023 | up 12.7% | falling |
| 14 | Germany | 0.5695 | 2022 | down 17.6% | rising |
| 15 | Denmark | 0.5645 | 2022 | down 22.4% | falling |
| 16 | Netherlands (Kingdom of the) | 0.564 | 2022 | down 28.3% | falling |
| 17 | Croatia | 0.5561 | 2022 | down 10.8% | flat |
| 18 | Iceland | 0.5471 | 2022 | down 27.3% | falling |
| 19 | Slovenia | 0.5448 | 2022 | down 20.0% | falling |
| 20 | Sweden | 0.5349 | 2022 | down 19.9% | falling |
| 21 | Australia | 0.533 | 2022 | down 23.8% | falling |
| 22 | Lithuania | 0.5312 | 2022 | down 12.7% | falling |
| 23 | Belgium | 0.5283 | 2022 | down 20.6% | falling |
| 24 | France | 0.5118 | 2022 | down 15.1% | falling |
| 25 | Austria | 0.5063 | 2022 | down 19.4% | falling |
| 26 | New Zealand | 0.5011 | 2022 | down 18.1% | falling |
| 27 | Norway | 0.4807 | 2022 | down 34.7% | falling |
| 28 | Greece | 0.4677 | 2022 | down 10.2% | flat |
| 29 | Czechia | 0.4601 | 2022 | down 30.8% | falling |
| 30 | Lebanon | 0.4342 | 2019 | down 23.8% | falling |
| 31 | Albania | 0.4102 | 2022 | down 60.2% | rising |
| 32 | Slovakia | 0.3931 | 2022 | down 16.5% | falling |
| 33 | Bahrain | 0.3833 | 2023 | down 11.3% | rising |
| 34 | Mexico | 0.3763 | 2022 | down 12.0% | rising |
| 35 | Uruguay | 0.3694 | 2022 | up 32.7% | flat |
| 36 | Israel | 0.3529 | 2022 | down 27.9% | flat |
| 37 | Hungary | 0.3404 | 2023 | down 33.9% | falling |
| 38 | Romania | 0.316 | 2022 | down 28.6% | falling |
| 39 | Thailand | 0.3152 | 2022 | down 42.5% | falling |
| 40 | Tunisia | 0.307 | 2015 | up 32.9% | rising |
| 41 | Bulgaria | 0.3069 | 2022 | down 15.1% | rising |
| 42 | Jordan | 0.2855 | 2022 | down 12.7% | rising |
| 43 | Chile | 0.267 | 2023 | up 43.6% | rising |
| 44 | Argentina | 0.2566 | 2022 | down 5.7% | flat |
| 45 | Indonesia | 0.2531 | 2022 | down 25.9% | falling |
| 46 | Colombia | 0.2477 | 2022 | up 11.6% | rising |
| 47 | Brazil | 0.2173 | 2022 | down 6.5% | rising |
| 48 | Singapore | 0.1449 | 2019 | down 83.6% | volatile |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- China, Hong Kong Special Administrative Region 0.8716
- Türkiye 0.732
- United States of America 0.5524
- Iran (Islamic Republic of) 0.2303