中美

年份	USA_人均GDP与CHN_人均GDP相对差率（%）
1970	97.83
1971	97.88
1972	97.83
1973	97.66
1974	97.78
1975	97.71
1976	98.07
1977	98.03
1978	98.52
1979	98.42
1980	98.44
1981	98.58
1982	98.59
1983	98.54
1984	98.53
1985	98.38
1986	98.52
1987	98.74
1988	98.67
1989	98.63
1990	98.66
1991	98.62
1992	98.55
1993	98.56
1994	98.28
1995	97.86
1996	97.62
1997	97.50
1998	97.46
1999	97.44
2000	97.33
2001	97.13
2002	96.93
2003	96.68
2004	96.33
2005	95.96
2006	95.39
2007	94.30
2008	92.73
2009	91.73
2010	90.47
2011	88.58
2012	87.60
2013	86.57
2014	85.88
2015	85.61
2016	85.75
2017	85.03
2018	83.95
2019	84.13
2020	83.50
2021	81.94
2022	83.36
2023	84.30
2024	84.56