中美

年份	USA_人均GDP与CHN_人均GDP之差（现价美元）
1970	5119.65
1971	5490.16
1972	5960.90
1973	6567.66
1974	7063.60
1975	7622.38
1976	8424.32
1977	9264.27
1978	10406.34
1979	11487.71
1980	12351.85
1981	13745.57
1982	14195.28
1983	15282.13
1984	16828.81
1985	17896.99
1986	18745.55
1987	19740.74
1988	21083.98
1989	22493.57
1990	23516.50
1991	23955.87
1992	25011.18
1993	25971.06
1994	27184.32
1995	28045.32
1996	29218.66
1997	30637.26
1998	31982.90
1999	33598.85
2000	35330.80
2001	36034.59
2002	36790.44
2003	38113.03
2004	40129.07
2005	42274.36
2006	44104.74
2007	45241.27
2008	44974.56
2009	43224.76
2010	43940.75
2011	44248.24
2012	45239.94
2013	46087.96
2014	47312.93
2015	48621.67
2016	49676.13
2017	51022.32
2018	52739.34
2019	54828.10
2020	53786.54
2021	58467.56
2022	64955.39
2023	69554.82
2024	72842.85