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The population of United States
278 058 881 (3rd)
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Age structure of United States
0-14-years 19.4%
15-24-years 13.7%
25-54-years 39.9%
55-64-years 14.5%
65-years-and-over 13.9%
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Religions of United States
Protestant 51.3%
Roman Catholic 23.9%
Mormon 1.7%
other Christian 1.6%
Jewish 1.7%
Buddhist 0.7%
none 4%
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Sex ratio of United States
0.97 male/female
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Internet users in United States
245 million (2nd)
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Energy generated from United States
Fossil fuels 75%
Nuclear fuels 9%
Hydroelectricity 7%
Other renewable sources 5%