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Question: To what extent do you agree or disagree with the following statements? - National language is easy for me.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Agree" "Strongly agree"
Period:
Area:
10 countries/ areas
Highlight:
1 Sweden67.0%
2 United States 66.1%
3 Italy65.5%
4 Canada59.8%
5 Germany59.7%
6 Australia53.3%
7 United Kingdom51.3%
8 France45.8%
9 Republic of Korea37.4%
10 Japan30.0%

Note
The data of Azerbaijan are collected only in Baku. The data of Ukraine are collected from 18 out of 27 regions.

Source
OECD PISA 2022

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 2.211281 X +5.469
Correlation coefficient (r)0.677
Coefficient of determination (R2)0.458

GDP per capita (current US$)
No. of data10
Regression equation
Y = 67971.031960 X +12504.924
Correlation coefficient (r)0.596
Coefficient of determination (R2)0.355

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -8.988739 X +86.817
Correlation coefficient (r)-0.494
Coefficient of determination (R2)0.244

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.006534 X +0.940
Correlation coefficient (r)0.429
Coefficient of determination (R2)0.184

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = -14.721736 X +18.989
Correlation coefficient (r)-0.405
Coefficient of determination (R2)0.164