美国人口历年数据如下:

数据来源:世界银行、IMF
时间(年)
人口(人)
占世界比重(%)
14岁及以下
儿童(%)
65岁及以上
老年人(%)
男性(%)
女性(%)
2021 332,180,000
2020 329,484,000 4.2499 18.37 16.63 49.48 50.52
2019 328,330,000 4.2788 18.55 16.21 49.48 50.52
2018 326,838,000 4.3048 18.71 15.81 49.48 50.52
2017 325,122,000 4.3295 18.86 15.42 49.48 50.52
2016 323,072,000 4.3514 19.02 15.03 49.47 50.53
2015 320,739,000 4.3703 19.22 14.64 49.46 50.54
2014 318,386,000 4.3889 19.42 14.27 49.45 50.55
2013 316,060,000 4.4083 19.62 13.91 49.43 50.57
2012 313,878,000 4.4297 19.82 13.56 49.42 50.58
2011 311,583,000 4.4494 20.03 13.25 49.4 50.6
2010 309,327,000 4.4688 20.2 12.98 49.39 50.61
2009 306,772,000 4.4852 20.36 12.76 49.38 50.62
2008 304,094,000 4.5004 20.52 12.6 49.37 50.63
2007 301,231,000 4.5134 20.69 12.47 49.36 50.64
2006 298,380,000 4.5259 20.82 12.38 49.36 50.64
2005 295,517,000 4.5382 20.88 12.31 49.35 50.65
2004 292,805,000 4.5526 21.1 12.28 49.33 50.67
2003 290,108,000 4.5673 21.27 12.28 49.32 50.68
2002 287,625,000 4.5853 21.4 12.29 49.3 50.7
2001 284,969,000 4.6010 21.53 12.31 49.28 50.72
2000 282,162,000 4.6148 21.7 12.33 49.26 50.74
1999 279,040,000 4.6241 21.81 12.4 49.23 50.77
1998 275,854,000 4.6331 21.92 12.47 49.21 50.79
1997 272,657,000 4.6431 22.01 12.55 49.19 50.81
1996 269,394,000 4.6530 22.05 12.61 49.16 50.84
1995 266,278,000 4.6660 22.02 12.66 49.13 50.87
1994 263,126,000 4.6802 22.02 12.69 49.1 50.9
1993 259,919,000 4.6935 21.99 12.7 49.07 50.93
1992 256,514,000 4.7045 21.91 12.7 49.04 50.96
1991 252,981,000 4.7126 21.8 12.67 49.02 50.98
1990 249,623,000 4.7277 21.67 12.63 49 51
1989 246,819,000 4.7557 21.64 12.55 49 51
1988 244,499,000 4.7929 21.61 12.46 49.01 50.99
1987 242,289,000 4.8336 21.59 12.36 49.03 50.97
1986 240,133,000 4.8760 21.59 12.25 49.05 50.95
1985 237,924,000 4.9166 21.6 12.13 49.05 50.95
1984 235,825,000 4.9585 21.73 12.02 49.05 50.95
1983 233,792,000 5.0016 21.89 11.91 49.04 50.96
1982 231,664,000 5.0445 22.09 11.8 49.03 50.97
1981 229,466,000 5.0866 22.35 11.69 49.03 50.97
1980 227,225,000 5.1258 22.67 11.56 49.03 50.97
1979 225,055,000 5.1656 23.08 11.39 49.05 50.95
1978 222,585,000 5.1990 23.55 11.22 49.08 50.92
1977 220,239,000 5.2341 24.05 11.05 49.12 50.88
1976 218,035,000 5.2724 24.55 10.89 49.15 50.85
1975 215,973,000 5.3162 25.01 10.73 49.18 50.82
1974 213,854,000 5.3618 25.64 10.6 49.2 50.8
1973 211,909,000 5.4155 26.26 10.47 49.21 50.79
1972 209,896,000 5.4705 26.87 10.33 49.22 50.78
1971 207,661,000 5.5221 27.47 10.2 49.23 50.77
1970 205,052,000 5.5691 28.1 10.05 49.25 50.75
1969 202,677,000 5.6197 28.57 9.94 49.28 50.72
1968 200,706,000 5.6812 29.01 9.82 49.32 50.68
1967 198,712,000 5.7404 29.4 9.7 49.37 50.63
1966 196,560,000 5.7946 29.75 9.58 49.41 50.59
1965 194,303,000 5.8489 30.07 9.46 49.45 50.55
1964 191,889,000 5.8949 30.34 9.39 49.47 50.53
1963 189,242,000 5.9330 30.58 9.32 49.5 50.5
1962 186,538,000 5.9701 30.75 9.26 49.51 50.49
1961 183,691,000 5.9803 30.8 9.19 49.53 50.47
1960 180,671,000 5.9585 30.69 9.12 49.54 50.46
1959 177,622,000 5.9947 30.59 9.08 49.56 50.44

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