世界经济

指标/年份	USA_0-14岁人口占总人口的百分比	USA_15-64岁人口占总人口的百分比	USA_65岁及以上年龄人口占总人口的百分比
1960	31.27	59.90	8.83
1961	31.40	59.66	8.93
1962	31.29	59.70	9.01
1963	31.11	59.82	9.07
1964	30.93	59.92	9.14
1965	30.70	60.04	9.26
1966	30.39	60.24	9.37
1967	29.99	60.56	9.45
1968	29.52	60.95	9.53
1969	29.03	61.35	9.62
1970	28.55	61.73	9.72
1971	28.02	62.17	9.81
1972	27.37	62.73	9.90
1973	26.64	63.36	10.01
1974	25.89	63.98	10.13
1975	25.16	64.57	10.27
1976	24.45	65.13	10.42
1977	23.80	65.62	10.58
1978	23.25	66.01	10.75
1979	22.77	66.32	10.92
1980	22.40	66.52	11.08
1981	22.15	66.64	11.21
1982	21.98	66.69	11.33
1983	21.84	66.70	11.46
1984	21.69	66.72	11.59
1985	21.51	66.77	11.72
1986	21.35	66.80	11.85
1987	21.30	66.71	11.99
1988	21.35	66.54	12.11
1989	21.46	66.32	12.22
1990	21.57	66.12	12.31
1991	21.71	65.94	12.35
1992	21.82	65.79	12.39
1993	21.87	65.72	12.41
1994	21.87	65.73	12.41
1995	21.79	65.80	12.41
1996	21.68	65.93	12.39
1997	21.55	66.10	12.35
1998	21.41	66.28	12.30
1999	21.29	66.47	12.24
2000	21.16	66.65	12.19
2001	21.03	66.83	12.14
2002	20.89	67.00	12.11
2003	20.73	67.17	12.10
2004	20.55	67.34	12.11
2005	20.35	67.52	12.13
2006	20.16	67.66	12.18
2007	20.02	67.67	12.31
2008	19.91	67.60	12.49
2009	19.81	67.52	12.67
2010	19.70	67.46	12.84
2011	19.60	67.33	13.07
2012	19.51	67.12	13.38
2013	19.41	66.89	13.70
2014	19.31	66.68	14.01
2015	19.19	66.50	14.31
2016	19.07	66.32	14.61
2017	18.94	66.12	14.94
2018	18.79	65.92	15.29
2019	18.61	65.72	15.67
2020	18.39	65.54	16.07
2021	18.15	65.38	16.47
2022	17.88	65.20	16.92
2023	17.59	64.97	17.43
2024	17.32	64.75	17.93

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