Tweet
Question: 1. Did you smile or laugh a lot yesterday? 2. Did you experience enjoyment during a lot of the day yesterday? 3. Did you experience happiness 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 Canada87.2%
2 United Kingdom84.5%
3 United States84.4%
4 Sweden83.4%
5 Australia82.0%
6 Germany79.9%
7 Japan78.9%
8 France77.0%
9 Republic of Korea 66.1%
10 Italy64.8%

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 = 4.887530 X +2.925
Correlation coefficient (r)0.705
Coefficient of determination (R2)0.497

GNI per capita, Atlas method (current US$)
No. of data10
Regression equation
Y = 94026.529885 X -28619.711
Correlation coefficient (r)0.707
Coefficient of determination (R2)0.500

Life expectancy at birth - Both sexes (years)
No. of data10
Regression equation
Y = -9.313514 X +89.561
Correlation coefficient (r)-0.452
Coefficient of determination (R2)0.204

Fertility rate, total (births per woman)
No. of data10
Regression equation
Y = 2.494636 X -0.399
Correlation coefficient (r)0.698
Coefficient of determination (R2)0.487

Suicide - all ages (per 100,000 population)
No. of data10
Regression equation
Y = -24.199137 X +33.044
Correlation coefficient (r)-0.311
Coefficient of determination (R2)0.097