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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%
5 United States93.8%
7 Japan75.9%

Note
Can't choose/ No answer are excluded.

No data for 2 countries.

Source
ISSP 2013

Correlations with major national performance indices
Life satisfaction (10 steps)
No. of data5
Regression equation
Y = 3.186910 X +3.655
Correlation coefficient (r)0.965
Coefficient of determination (R2)0.931

GDP per capita (current US$)
No. of data5
Regression equation
Y = 99228.525028 X -38180.792
Correlation coefficient (r)0.495
Coefficient of determination (R2)0.245

Life expectancy at birth - Both sexes (years)
No. of data5
Regression equation
Y = -14.252243 X +94.327
Correlation coefficient (r)-0.510
Coefficient of determination (R2)0.260

Fertility rate, total (births per woman)
No. of data5
Regression equation
Y = 1.863775 X -0.156
Correlation coefficient (r)0.811
Coefficient of determination (R2)0.658

Suicide, age-standardized (per 100 000 population)
No. of data5
Regression equation
Y = -15.507170 X +24.505
Correlation coefficient (r)-0.446
Coefficient of determination (R2)0.199