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Question: How much do you agree with the following statements? - I usually manage one way or another.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Strongly agree" "Agree"
Period:
Area:
10 countries/ areas
Highlight:
1 United States93.6%
2 Australia93.3%
3 Canada93.1%
3 Sweden93.1%
5 France 92.4%
6 United Kingdom90.2%
7 Republic of Korea85.6%
8 Germany84.8%
9 Italy84.6%
10 Japan64.8%

Source
PISA 2018 Results (Volume III) : What School Life Means for Studentsf Lives

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 4.589367 X +2.720
Correlation coefficient (r)0.725
Coefficient of determination (R2)0.526

GNI per capita, PPP (current international$)
No. of data10
Regression equation
Y = 28550.708061 X +24092.855
Correlation coefficient (r)0.365
Coefficient of determination (R2)0.133

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -0.092866 X +0.901
Correlation coefficient (r)-0.539
Coefficient of determination (R2)0.291

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 1.527425 X +0.262
Correlation coefficient (r)0.494
Coefficient of determination (R2)0.244

Suicide - all ages (per 100,000 population, age-adjusted)
No. of data10
Regression equation
Y = -7.766872 X +18.430
Correlation coefficient (r)-0.170
Coefficient of determination (R2)0.029