Year	current US$
1960	377710000
1961	370210000
1962	410330000
1963	470379000
1964	479680000
1965	556567000
1966	580960000
1967	639405000
1968	667065000
1969	776766000
1970	858615000
1971	1152900000
1972	1333445000
1973	2361226000
1974	3714197000
1975	4046739000
1976	5145913000
1977	6673268000
1978	6900339000
1979	8322657000
1980	10312219000
1981	11422394519.4
1982	11312587856.52
1983	10140642329.96
1984	10195613395.752998
1985	10097197594.599998
1986	9767813956.42
1987	11387883882.37
1988	12773547813.670002
1989	13796317776.47
1990	16341687365.25
1991	17566393407.179996
1992	21338266922.649998
1993	20655368614.179996
1994	21332757018.330006
1995	24368338737.969997
1996	28406501080.370003
1997	28370982332.08
1998	29474457891.23
1999	26707947479.43
2000	33094046048
2001	32146201985
2002	36317341291
2003	43729639376
2004	57318004004
2005	67002171792
2006	82218621737
2007	100205421932
2008	118812974950
2009	94328394362
2010	103829359786
2011	121722747587
2012	121541593948
2013	128080045370
2014	135334773852
2015	122910437811
2016	120178639116
2017	120962861084
2018	132563409998
2019	129861146618
2020	111896620400