Correlational Subjects » ERA (temporal period) » Average happiness in era » Trend average happiness in era » Trend average happiness in special publics » Trend average happiness in income groups » Trend average happiness among the rich

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ERA (temporal period) Average happiness in era Trend average happiness in era Trend average happiness in special publics Trend average happiness in income groups Trend average happiness among the rich

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Keywords

affluent, wealthy, well-off