Year	current US$
1960	2932370117.1875
1961	3723449951.17188
1962	3632900146.48438
1963	3945969970.70313
1964	4169270019.53125
1965	4471640136.71875
1966	4642060058.59375
1967	4711910156.25
1968	4287770019.53125
1969	4232479980.46875
1970	4552060058.59375
1971	4989529785.15625
1972	4991240234.375
1973	6485700195.3125
1974	8816160156.25
1975	11648179687.5
1976	11374799804.6875
1977	11197620117.1875
1978	13596209960.9375
1979	15240809570.3125
1980	19054369140.625
1981	18369429687.5
1982	17329029296.875
1983	16219759765.625
1984	16439830078.125
1985	16908910156.25
1986	19862628906.25
1987	22146320312.5
1988	24231259765.625
1989	25628560546.875
1990	35384311889.64844
1991	38720911376.95313
1992	38803089843.75
1993	36362708251.95313
1994	38428799804.6875
1995	36794349853.51563
1996	34242050537.10938
1997	29095970825.19531
1998	32200600097.65625
1999	35159051025.39063
2000	31569339111.32813
2001	32982090087.89063
2002	35781209960.9375
2003	37642128295.89844
2004	43273691406.25
2005	67304273437.5
2006	60843601562.5
2007	54794550781.25
2008	60359750000
2009	58621218750
2010	58681820312.5
2011	62662898437.5
2012	62187332031.25
2013	70822640625
2014	68632140625
2015	63802621093.75
2016	65372410156.25
2017	66480953125
2018	63538261718.75
2019	62047929687.5
2020	82064656250
2021	82103859375