Correlational Subjects » ERA (temporal period) » Average happiness in era » Trend average happiness in era » Trend average happiness in general public » Trend average happiness in nations » Trend average happiness in Russia
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ERA (temporal period) Average happiness in era Trend average happiness in era Trend average happiness in general public Trend average happiness in nations Trend average happiness in Russia - Related correlational subjects
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- Related specification variables
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- Related special publics
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- Keywords
- Soviet Union, USSR