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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 France 68.5%
5 Canada67.8%
6 Australia65.7%
7 Japan65.2%
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 = -4.153062 X +9.484
Correlation coefficient (r)-0.513
Coefficient of determination (R2)0.263

GDP per capita (current US$)
No. of data10
Regression equation
Y = -66277.796772 X +94092.291
Correlation coefficient (r)-0.234
Coefficient of determination (R2)0.055

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -1.230853 X +82.839
Correlation coefficient (r)-0.027
Coefficient of determination (R2)0.001

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = -3.465878 X +3.841
Correlation coefficient (r)-0.596
Coefficient of determination (R2)0.355

Suicide, age-standardized (per 100 000 population)
No. of data10
Regression equation
Y = 30.029831 X -9.362
Correlation coefficient (r)0.333
Coefficient of determination (R2)0.111