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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 France26.2%
3 United States25.4%
4 Canada23.6%
5 Australia21.0%
6 Sweden 18.3%
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 = -1.132546 X +6.983
Correlation coefficient (r)-0.101
Coefficient of determination (R2)0.010

GNI per capita, PPP (current international$)
No. of data10
Regression equation
Y = -7217.359445 X +50654.445
Correlation coefficient (r)-0.052
Coefficient of determination (R2)0.003

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -0.008932 X +0.822
Correlation coefficient (r)-0.029
Coefficient of determination (R2)0.001

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 0.216211 X +1.552
Correlation coefficient (r)0.040
Coefficient of determination (R2)0.002

Suicide - all ages (per 100,000 population, age-adjusted)
No. of data10
Regression equation
Y = -32.401289 X +18.658
Correlation coefficient (r)-0.400
Coefficient of determination (R2)0.160