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Question: 1. Did you experience worry during a lot of the day yesterday? 2. Did you experience sadness during a lot of the day yesterday? 3. Did you experience anger during a lot of the day yesterday?
Choices: "Yes" "No"
Data: The average of the percentages of "Yes" to the three questions.
Period:
Area:
10 countries/ areas
Highlight:
1 Italy32.0%
2 France 26.2%
3 United States25.4%
4 Canada23.6%
5 Australia21.0%
6 Sweden18.3%
7 United Kingdom18.0%
8 Japan17.8%
8 Republic of Korea17.8%
10 Germany16.8%

Source
John Helliwell, Richard Layard and Jeffrey Sachs (eds.) World Happiness Report 2013

Original source
Gallup World Poll.

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data10
Regression equation
Y = -0.200184 X +6.821
Correlation coefficient (r)-0.019
Coefficient of determination (R2)0.000

GNI per capita, Atlas method (current US$)
No. of data10
Regression equation
Y = -19665.339642 X +49757.412
Correlation coefficient (r)-0.096
Coefficient of determination (R2)0.009

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -2.894432 X +82.848
Correlation coefficient (r)-0.091
Coefficient of determination (R2)0.008

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 0.376080 X +1.485
Correlation coefficient (r)0.069
Coefficient of determination (R2)0.005

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = -46.889535 X +24.140
Correlation coefficient (r)-0.392
Coefficient of determination (R2)0.154