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Question: Some people say that the following things are important for being truly their national. Others say they are not important. How important do you think each of the following is? "to be able to speak the country's language"
Choices: "Very important" "Fairly important" "Not very important" "Not important at all"
Data: % of "Very important" "Fairly important"
Period:
Area:
7 countries/ areas
Highlight:
1 United Kingdom96.7%
2 France 96.5%
3 Germany94.8%
4 Sweden94.2%
5 United States93.8%
6 Republic of Korea87.2%
7 Japan75.9%

Note
Can't choose/ No answer are excluded.

No data for 3 countries.

Source
ISSP 2013

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data7
Regression equation
Y = 4.235256 X +2.742
Correlation coefficient (r)0.713
Coefficient of determination (R2)0.508

GDP per capita (current US$)
No. of data7
Regression equation
Y = 99647.769076 X -43068.413
Correlation coefficient (r)0.498
Coefficient of determination (R2)0.248

Life expectancy at birth - Both sexes (years)
No. of data7
Regression equation
Y = -18.746292 X +98.730
Correlation coefficient (r)-0.520
Coefficient of determination (R2)0.270

Fertility rate, total (births per woman)
No. of data7
Regression equation
Y = 2.706183 X -0.984
Correlation coefficient (r)0.599
Coefficient of determination (R2)0.359

Suicide, age-standardized (per 100 000 population)
No. of data7
Regression equation
Y = -25.758574 X +35.672
Correlation coefficient (r)-0.406
Coefficient of determination (R2)0.165