''See also:'' [[Size of a working age population in a country and its correlation with national GNP in advanced economies]]
''See also:'' [[Size of a working age population in a country and its correlation with national GNP in advanced economies]]
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==Per capita income==
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Per capita income is GNP divided by population (in contrast to working age, workforce, or household statistics).
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The average [[per capita]] GNP (as of 2006) in developed countries with high-income economies, e.g. the United Kingdom, is about $23500. In developing countries with middle-income economies it is $2500. In developing countries with low-income economies, it is less than $400.