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Cantril ladder. The evaluation of life by imagining life as a ladder, with the best possible life for them as a 10, and the worst possible life as a zero.
Period:
Area:
10 countries/ areas
Highlight:
1 Sweden7.353
2 Canada7.232
3 Australia7.223
4 United Kingdom7.165
5 Germany7.076
6 United States6.940
7 France6.664
8 Italy6.387
9 Republic of Korea 5.872
10 Japan5.871

Source
Helliwell, John F., Richard Layard, Jeffrey Sachs, and Jan-Emmanuel De Neve, eds. 2020. World Happiness Report 2020. New York: Sustainable Development Solutions Network.

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = 1.000000 X
Correlation coefficient (r)1.000
Coefficient of determination (R2)1.000

GNI per capita, Atlas method (current US$)
No. of data10
Regression equation
Y = 11464.630428 X -31072.704
Correlation coefficient (r)0.640
Coefficient of determination (R2)0.410

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -1.310781 X +90.955
Correlation coefficient (r)-0.467
Coefficient of determination (R2)0.218

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 0.350338 X -0.808
Correlation coefficient (r)0.715
Coefficient of determination (R2)0.511

Suicide - all ages (per 100,000 population, age-adjusted)
No. of data10
Regression equation
Y = -3.669738 X +36.505
Correlation coefficient (r)-0.508
Coefficient of determination (R2)0.258