| http://www.w3.org/ns/prov#value | - But because basic commodities such as food, electricity, and fuel are bought in similar amounts per capita regardless of income (i.e., a working-class family living on $30,000 per year in Harlem uses about the same amount of electricity and food as the family of a money manager living on $30 million per year on Park Avenue; and rural Americans, of whatever class, spend much more on gasoline than e
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