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Question: Thinking about yourself and how you normally feel: how often do you feel as described below? - Cheerful
Choices: "Never" "Rarely" "Sometimes" "Always"
Data: % of "Sometimes" "Always"
Period:
Area:
9 countries/ areas
Highlight:
1 France 93.6%
2 Germany92.3%
5 Canada84.9%
6 United Kingdom83.8%
7 United States82.6%
8 Japan78.9%
9 Italy66.1%

Source
PISA 2018 Results (Volume III) : What School Life Means for Studentsf Lives

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data7
Regression equation
Y = 1.728919 X +5.146
Correlation coefficient (r)0.545
Coefficient of determination (R2)0.297

GDP per capita (current US$)
No. of data7
Regression equation
Y = 47310.879174 X +11385.009
Correlation coefficient (r)0.281
Coefficient of determination (R2)0.079

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -6.371668 X +86.814
Correlation coefficient (r)-0.278
Coefficient of determination (R2)0.077

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 1.538329 X +0.195
Correlation coefficient (r)0.667
Coefficient of determination (R2)0.445

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = 12.628536 X -1.043
Correlation coefficient (r)0.343
Coefficient of determination (R2)0.118