Statizoid

Proportion of students at the end of lower secondary achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA) by country

February 2026 Data Release

Countries reporting
52
Highest
0.977 WPIA
Japan
Lowest
0.1449 WPIA
Singapore
Median
0.5201 WPIA
Years covered
24
2000–2023
Data points
364

What the numbers show

Proportion of students at the end of lower secondary achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA) is currently reported for 52 countries. The highest value is 0.977 WPIA in Japan; the lowest is 0.1449 WPIA in Singapore.

The median across all reporting countries is 0.5201 WPIA, and the mean is 0.4866 WPIA.

The gap between the highest and lowest reporting country is a factor of about 7.

Over the past decade 10 countries rose and 42 fell. The largest increase was in Chile (up 43.6%), and the largest decrease in Singapore (down 83.6%).

Proportion of students at the end of lower secondary achieving at: full country ranking

#Country LatestYear 10-year changeTrend
1 Japan 0.977 WPIA 2023 up 15.3% rising
2 Hong Kong 0.8716 WPIA 2022 down 3.6% flat
3 Russia 0.7556 WPIA 2018 up 22.3% rising
4 Turkey 0.732 WPIA 2023 up 39.1% rising
5 South Korea 0.6611 WPIA 2022 down 25.7% falling
6 Latvia 0.6471 WPIA 2022 down 9.5% flat
7 Italy 0.6389 WPIA 2023 up 6.2% rising
8 Ireland 0.6294 WPIA 2022 down 11.6% falling
9 Canada 0.624 WPIA 2022 down 23.5% falling
10 Poland 0.6201 WPIA 2022 down 16.2% rising
11 Spain 0.6044 WPIA 2022 down 4.0% flat
12 Portugal 0.5978 WPIA 2022 up 0.1% rising
13 Finland 0.5967 WPIA 2022 down 27.7% falling
14 Luxembourg 0.5948 WPIA 2018 down 2.0% rising
15 Oman 0.593 WPIA 2023 up 12.7% falling
16 Germany 0.5695 WPIA 2022 down 17.6% rising
17 Denmark 0.5646 WPIA 2022 down 22.4% falling
18 Netherlands 0.564 WPIA 2022 down 28.3% falling
19 Croatia 0.5561 WPIA 2022 down 10.8% flat
20 United States 0.5524 WPIA 2022 down 12.4% rising
21 Iceland 0.5471 WPIA 2022 down 27.3% falling
22 Slovenia 0.5448 WPIA 2022 down 20.0% falling
23 Sweden 0.5349 WPIA 2022 down 19.9% falling
24 Australia 0.533 WPIA 2022 down 23.8% falling
25 Lithuania 0.5312 WPIA 2022 down 12.7% falling
26 Belgium 0.5283 WPIA 2022 down 20.6% falling
27 France 0.5118 WPIA 2022 down 15.1% falling
28 Austria 0.5063 WPIA 2022 down 19.4% falling
29 New Zealand 0.5011 WPIA 2022 down 18.1% falling
30 Norway 0.4807 WPIA 2022 down 34.7% falling
31 Greece 0.4676 WPIA 2022 down 10.2% flat
32 Czechia 0.4601 WPIA 2022 down 30.8% falling
33 Lebanon 0.4342 WPIA 2019 down 23.8% falling
34 Albania 0.4102 WPIA 2022 down 60.2% rising
35 Slovakia 0.3931 WPIA 2022 down 16.5% falling
36 Bahrain 0.3833 WPIA 2023 down 11.3% rising
37 Mexico 0.3763 WPIA 2022 down 12.0% rising
38 Uruguay 0.3694 WPIA 2022 up 32.7% flat
39 Israel 0.3529 WPIA 2022 down 27.9% flat
40 Hungary 0.3404 WPIA 2023 down 33.9% falling
41 Romania 0.316 WPIA 2022 down 28.6% falling
42 Thailand 0.3152 WPIA 2022 down 42.5% falling
43 Tunisia 0.307 WPIA 2015 up 32.9% rising
44 Bulgaria 0.3069 WPIA 2022 down 15.1% rising
45 Jordan 0.2855 WPIA 2022 down 12.7% rising
46 Chile 0.267 WPIA 2023 up 43.6% rising
47 Argentina 0.2566 WPIA 2022 down 5.7% flat
48 Indonesia 0.2531 WPIA 2022 down 25.9% falling
49 Colombia 0.2477 WPIA 2022 up 11.6% rising
50 Iran, Islamic Republic of 0.2303 WPIA 2023 down 4.6% flat
51 Brazil 0.2173 WPIA 2022 down 6.5% rising
52 Singapore 0.1449 WPIA 2019 down 83.6% volatile

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Proportion of students at the end of lower secondary achieving at by country. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 02 September 2026, from https://education.statizoid.com/stat/proportion-of-students-at-the-end-of-lower-secondary-achieving-at-least-a-minimum-6/

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About this data

Indicator
Proportion of students at the end of lower secondary achieving at least a minimum proficiency level in mathematics, adjusted wealth parity index (WPIA)
Unit
WPIA
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
52 places, 364 data points, 2000–2023
Last refreshed

February 2026 Data Release