中美

年份	USA_人均GDP比CHN_人均GDP(倍数)
1970	46.17
1971	47.20
1972	46.13
1973	42.74
1974	45.04
1975	43.67
1976	51.85
1977	50.88
1978	67.43
1979	63.34
1980	64.29
1981	70.62
1982	70.68
1983	68.66
1984	68.00
1985	61.67
1986	67.37
1987	79.26
1988	75.23
1989	73.23
1990	74.83
1991	72.70
1992	69.00
1993	69.54
1994	58.15
1995	46.77
1996	41.96
1997	39.94
1998	39.30
1999	39.13
2000	37.45
2001	34.82
2002	32.62
2003	30.16
2004	27.21
2005	24.78
2006	21.71
2007	17.54
2008	13.76
2009	12.09
2010	10.49
2011	8.76
2012	8.06
2013	7.45
2014	7.08
2015	6.95
2016	7.02
2017	6.68
2018	6.23
2019	6.30
2020	6.06
2021	5.54
2022	6.01
2023	6.37
2024	6.48