Year	current US$
1960	399000000
1961	464199981.689453
1962	407200012.207031
1963	336500000
1964	434600006.10351604
1965	328899993.89648396
1966	290399993.89648396
1967	310600006.10351604
1968	317299987.792969
1969	339299987.792969
1970	345100006.10351604
1971	345199981.689453
1972	393119995.11718804
1973	409449981.689453
1974	527409973.144531
1975	674059997.558594
1976	652840026.855469
1977	582279968.261719
1978	722059997.558594
1979	859130004.882813
1980	1122250000
1981	1231479980.46875
1982	1103339965.82031
1983	1029420043.94531
1984	1019500000
1985	1042280029.29688
1986	1433290039.0625
1987	1780300048.82813
1988	1915660034.17969
1989	2191899902.34375
1990	3012020019.53125
1991	3072639892.57813
1992	3525899902.34375
1993	3458070068.35938
1994	3816199951.17188
1995	3424449951.17188
1996	2920409912.10938
1997	2280760009.76563
1998	2177199951.17188
1999	2139280029.29688
2000	1632300048.82813
2001	1376290039.0625
2002	2029939941.40625
2003	2236750000
2004	2886939941.40625
2005	5120660156.25
2006	5822830078.125
2007	3833570068.35938
2008	3719310058.59375
2009	4190760253.90625
2010	4582399902.34375
2011	4785330078.125
2012	5536560058.59375
2013	4582629882.8125
2014	4209890136.71875
2015	2897439941.40625
2016	3257570068.35938
2017	4177859863.28125
2018	4416910156.25
2019	3871869873.04688
2020	5647149902.34375
2021	5532270019.53125
2022	5908840055.996553