中美

年份	美国GDP与中国GDP之差值(USA_GDP-CHN_GDP，现价亿美元)
1970	9805.50
1971	10648.91
1972	11652.38
1973	12866.12
1974	14008.25
1975	15212.16
1976	17192.15
1977	19065.99
1978	22018.10
1979	24487.59
1980	26658.19
1981	30108.23
1982	31383.08
1983	34029.08
1984	37771.70
1985	40289.14
1986	42783.21
1987	45817.60
1988	49235.49
1989	52931.99
1990	56015.84
1991	57736.19
1992	60918.25
1993	64120.02
1994	67203.06
1995	69015.58
1996	72045.98
1997	76097.98
1998	80256.83
1999	85273.29
2000	90271.97
2001	92268.92
2002	94392.86
2003	97725.47
2004	102329.99
2005	107216.46
2006	110240.85
2007	108701.72
2008	101025.16
2009	92884.90
2010	88564.06
2011	79279.75
2012	75803.05
2013	71375.59
2014	69336.05
2015	70142.04
2016	73488.89
2017	70745.43
2018	65087.50
2019	69798.15
2020	63788.67
2021	55239.46
2022	77378.49
2023	95411.60
2024	105542.10
2025	111408.88