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Question: How much do you agree with the following statements about yourself? - Once I start a task, I persist until it is finished.
Choices: "Strongly disagree" "Disagree" "Agree" "Strongly agree"
Data: % of "Agree" "Strongly agree"
Period:
Area:
10 countries/ areas
Highlight:
1 Italy76.3%
2 Republic of Korea76.2%
3 United States71.8%
4 France68.5%
5 Canada67.8%
6 Australia65.7%
7 Japan 65.2%
8 Sweden64.9%
9 Germany62.7%
10 United Kingdom62.3%

Note
The data of Azerbaijan are collected only in Baku. The data of China are collected only in Beijing, Shanghai, Jiangsu, and Zhejiang.

Source
OECD PISA 2018 Compendia

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = -5.045097 X +10.203
Correlation coefficient (r)-0.537
Coefficient of determination (R2)0.288

GDP per capita (current US$)
No. of data10
Regression equation
Y = -83498.538362 X +106629.204
Correlation coefficient (r)-0.362
Coefficient of determination (R2)0.131

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -1.177858 X +82.693
Correlation coefficient (r)-0.030
Coefficient of determination (R2)0.001

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -3.219365 X +3.656
Correlation coefficient (r)-0.593
Coefficient of determination (R2)0.352

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = 46.546772 X -17.747
Correlation coefficient (r)0.398
Coefficient of determination (R2)0.158