Year	current US$
1970	284759994.50899994
1971	315897541.1746
1972	348440035.39900005
1973	376562895.062
1974	1901760340.2929
1975	3309050168.423239
1976	4323591317.2292
1977	7122554712.242495
1978	9978679980.402277
1979	13002009993.275568
1980	17770746835.95625
1981	18009032156.495266
1982	19912539856.141655
1983	21510967100.364326
1984	20740614754.99673
1985	19883166946.236668
1986	20258072113.205257
1987	23397644763.633495
1988	23298438396.756718
1989	25277078984.28937
1990	29563182682.5498
1991	32473169866.331226
1992	38041252408.66428
1993	40191714876.02658
1994	49984042504.99627
1995	50894136421.01235
1996	54130608462.751915
1997	63907223716.12499
1998	62314722302.35215
1999	67465299490.87303
2000	75784056250.2057
2001	84599671809.83905
2002	100491035650.19722
2003	126416068903.99785
2004	146815035275.83014
2005	181487865186.93115
2006	214267330312.11478
2007	258435443859.05804
2008	298701415108.7318
2009	285202269132.5162
2010	311518622457.8353
2011	348755654720.9602
2012	371614639886.0155
2013	394884741060.79785
2014	425187446075.2428
2015	425472708845.17487
2016	416413974120.87396
2017	456629606730.5698
2018	495699751725.1002
2019	515939936255.3718
2020	519081484874.0915
2021	588118691248.1576
2022	638502683131.436