Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA) by country
February 2026 Data Release
Countries reporting
50
Highest
1.12 NPIA
Romania
Lowest
0.0951 NPIA
Mexico
Median
0.7486 NPIA
Years covered
29
1995–2023
Data points
355
What the numbers show
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA) is currently reported for 50 countries. The highest value is 1.12 NPIA in Romania; the lowest is 0.0951 NPIA in Mexico.
The median across all reporting countries is 0.7486 NPIA, and the mean is 0.7638 NPIA.
The gap between the highest and lowest reporting country is a factor of about 12.
Over the past decade 19 countries rose and 31 fell. The largest increase was in Colombia (up 588.6%), and the largest decrease in Mexico (down 64.1%).
Proportion of students at the end of lower secondary education: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Romania | 1.12 NPIA | 2022 | down 15.4% | rising |
| 2 | Bahrain | 1.11 NPIA | 2019 | up 172.5% | flat |
| 3 | Uruguay | 1.09 NPIA | 2022 | down 0.5% | falling |
| 4 | Australia | 1.07 NPIA | 2022 | up 2.4% | rising |
| 5 | Singapore | 1.06 NPIA | 2023 | up 8.1% | rising |
| 6 | Hungary | 1.06 NPIA | 2023 | up 72.1% | falling |
| 7 | Serbia | 1.03 NPIA | 2022 | down 4.9% | flat |
| 8 | Jordan | 1.02 NPIA | 2022 | down 16.9% | falling |
| 9 | Croatia | 1.01 NPIA | 2022 | up 11.3% | rising |
| 10 | Russian Federation | 0.9917 NPIA | 2018 | up 8.9% | flat |
| 11 | Canada | 0.9799 NPIA | 2022 | up 0.1% | flat |
| 12 | New Zealand | 0.9794 NPIA | 2022 | up 3.0% | flat |
| 13 | Latvia | 0.9693 NPIA | 2022 | up 0.3% | flat |
| 14 | Ireland | 0.9471 NPIA | 2022 | down 3.9% | flat |
| 15 | Hong Kong, China | 0.946 NPIA | 2022 | down 5.5% | flat |
| 16 | Lithuania | 0.9319 NPIA | 2022 | down 6.4% | falling |
| 17 | Bulgaria | 0.8955 NPIA | 2022 | up 102.6% | falling |
| 18 | Luxembourg | 0.8395 NPIA | 2018 | up 7.8% | rising |
| 19 | Slovakia | 0.8386 NPIA | 2022 | down 10.1% | falling |
| 20 | Lebanon | 0.8149 NPIA | 2019 | up 8.0% | falling |
| 21 | Japan | 0.8133 NPIA | 2023 | down 13.6% | rising |
| 22 | United States of America | 0.7689 NPIA | 2022 | down 16.3% | flat |
| 23 | Türkiye | 0.7684 NPIA | 2023 | down 12.4% | flat |
| 24 | Italy | 0.76 NPIA | 2023 | down 4.2% | falling |
| 25 | Argentina | 0.756 NPIA | 2022 | up 55.2% | flat |
| 26 | Czechia | 0.7413 NPIA | 2022 | down 15.4% | falling |
| 27 | Portugal | 0.738 NPIA | 2022 | down 0.6% | falling |
| 28 | Norway | 0.7378 NPIA | 2022 | up 0.6% | flat |
| 29 | Spain | 0.7143 NPIA | 2022 | down 1.0% | falling |
| 30 | Colombia | 0.6917 NPIA | 2022 | up 588.6% | volatile |
| 31 | Iceland | 0.6814 NPIA | 2022 | down 9.9% | falling |
| 32 | Belgium | 0.6808 NPIA | 2022 | down 4.9% | flat |
| 33 | Israel | 0.6706 NPIA | 2022 | down 37.5% | falling |
| 34 | Austria | 0.6644 NPIA | 2022 | down 10.3% | falling |
| 35 | France | 0.6599 NPIA | 2022 | down 4.2% | falling |
| 36 | Netherlands | 0.6551 NPIA | 2022 | down 19.4% | falling |
| 37 | Denmark | 0.653 NPIA | 2022 | down 3.0% | falling |
| 38 | Albania | 0.6369 NPIA | 2022 | down 45.1% | rising |
| 39 | Slovenia | 0.62 NPIA | 2022 | down 19.4% | falling |
| 40 | Chile | 0.6175 NPIA | 2023 | down 25.6% | falling |
| 41 | Costa Rica | 0.605 NPIA | 2022 | up 6.7% | falling |
| 42 | Iran, Islamic Republic of | 0.5974 NPIA | 2023 | up 60.9% | volatile |
| 43 | Sweden | 0.5968 NPIA | 2022 | down 12.0% | falling |
| 44 | Finland | 0.5486 NPIA | 2022 | down 10.8% | falling |
| 45 | Thailand | 0.5392 NPIA | 2022 | up 4.5% | rising |
| 46 | Germany | 0.461 NPIA | 2022 | down 42.2% | falling |
| 47 | Greece | 0.3778 NPIA | 2022 | down 39.8% | falling |
| 48 | Brazil | 0.3244 NPIA | 2022 | down 36.7% | volatile |
| 49 | Tunisia | 0.3099 NPIA | 2015 | up 45.0% | volatile |
| 50 | Mexico | 0.0951 NPIA | 2022 | down 64.1% | falling |
About this data
February 2026 Data Release