Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted speaks language of the test parity index (LTPIA) by country

The adjusted speaks language of the test parity index (LTPIA) is calculated by dividing the value for the indicator for students who do not speak the language of the test at home by the value for the indicator for students who speak the language of the test at home. If the resulting value exceeds 1, the ratio is...

Countries reporting
47
Highest
1.35 LTPIA
Morocco
Lowest
0.4013 LTPIA
Italy
Median
0.7939 LTPIA
Years covered
24
1995–2018
Data points
299

What the numbers show

Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted speaks language of the test parity index (LTPIA) is currently reported for 47 countries. The highest value is 1.35 LTPIA in Morocco; the lowest is 0.4013 LTPIA in Italy.

The median across all reporting countries is 0.7939 LTPIA, and the mean is 0.7762 LTPIA.

The gap between the highest and lowest reporting country is a factor of about 3.

Over the past decade 21 countries rose and 26 fell. The largest increase was in Brazil (up 55.8%), and the largest decrease in Italy (down 50.7%).

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

#Country LatestYear 10-year changeTrend
1 Morocco 1.35 LTPIA 2015 down 3.8% falling
2 Ireland 1 LTPIA 2018 up 15.8% flat
3 Indonesia 0.9776 LTPIA 2018 up 30.4% rising
4 Canada 0.9681 LTPIA 2018 up 0.4% flat
5 Spain 0.9493 LTPIA 2018 down 0.5% falling
6 Hong Kong 0.9247 LTPIA 2018 up 5.7% flat
7 Singapore 0.9165 LTPIA 2015 up 1.0% falling
8 Israel 0.9067 LTPIA 2018 down 7.4% falling
9 New Zealand 0.8968 LTPIA 2018 up 10.2% flat
10 Poland 0.8959 LTPIA 2018 up 1.3% flat
11 Australia 0.8928 LTPIA 2018 down 7.9% falling
12 Serbia 0.8677 LTPIA 2018 up 12.5% rising
13 United States 0.8655 LTPIA 2018 down 1.1% rising
14 Latvia 0.8541 LTPIA 2018 down 8.7% flat
15 Jordan 0.8493 LTPIA 2018 down 5.8% falling
16 Croatia 0.8408 LTPIA 2018 up 2.2% rising
17 Luxembourg 0.833 LTPIA 2018 down 8.7% rising
18 Portugal 0.8206 LTPIA 2018 down 4.7% rising
19 Iceland 0.8199 LTPIA 2018 up 6.5% falling
20 Norway 0.813 LTPIA 2018 up 17.6% rising
21 Tunisia 0.8082 LTPIA 2015 down 35.5% volatile
22 Colombia 0.8056 LTPIA 2018 down 2.7% rising
23 Denmark 0.7984 LTPIA 2018 up 14.3% flat
24 Finland 0.7939 LTPIA 2018 down 10.2% falling
25 Republic of Korea 0.7925 LTPIA 2018 up 14.5% rising
26 Lithuania 0.7709 LTPIA 2018 down 12.6% falling
27 France 0.7701 LTPIA 2018 up 8.1% falling
28 Belgium 0.7647 LTPIA 2018 down 14.3% falling
29 Czechia 0.7591 LTPIA 2018 down 18.2% flat
30 Brazil 0.7571 LTPIA 2018 up 55.8% falling
31 Russian Federation 0.74 LTPIA 2018 down 5.2% flat
32 Hungary 0.74 LTPIA 2015 down 1.6% rising
33 Netherlands 0.729 LTPIA 2018 down 13.3% falling
34 Sweden 0.7097 LTPIA 2018 up 1.0% flat
35 Austria 0.6959 LTPIA 2018 down 5.0% flat
36 Germany 0.6645 LTPIA 2018 down 16.8% rising
37 Slovenia 0.6485 LTPIA 2018 down 18.7% falling
38 Romania 0.6423 LTPIA 2018 up 21.5% falling
39 Uruguay 0.6208 LTPIA 2018 down 3.6% flat
40 Greece 0.599 LTPIA 2018 up 1.8% flat
41 Thailand 0.5904 LTPIA 2018 down 30.7% falling
42 Bulgaria 0.5645 LTPIA 2018 up 23.4% rising
43 Slovakia 0.5272 LTPIA 2018 down 27.3% falling
44 Iran 0.5257 LTPIA 2015 up 20.7% falling
45 Argentina 0.5234 LTPIA 2018 down 14.5% falling
46 Mexico 0.4891 LTPIA 2018 up 46.4% rising
47 Italy 0.4013 LTPIA 2015 down 50.7% flat

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Proportion of students at the end of lower secondary education by country. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 30 August 2026, from https://reference.statizoid.com/stat/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-6/

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About this data

Indicator
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted speaks language of the test parity index (LTPIA)
Unit
LTPIA
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
47 places, 299 data points, 1995–2018
Last refreshed

The adjusted speaks language of the test parity index (LTPIA) is calculated by dividing the value for the indicator for students who do not speak the language of the test at home by the value for the indicator for students who speak the language of the test at home. If the resulting value exceeds 1, the ratio is inverted and subtracted from 2. The adjusted speaks language of the test parity index is symmetrical around 1 and lies in the range 0-2. An adjusted LTPI equal to 1 indicates parity between students who do and do not speak the language of the test at home. In general, a value less than 1 indicates disparity in favor of students who speak the language of test at home. A value greater than 1 indicates disparity in favor of students who do not speak the language of the test at home. For more information, consult the UNESCO Institute for Statistics: http://uis.unesco.org/