Year	current US$
1960	32250000
1961	32500000
1962	33650000
1963	34800000
1964	40700000
1965	45650000
1966	47450000
1967	50500000
1968	56600000
1969	58600050
1970	69499950
1971	71499950
1972	75499610.25175387
1973	84999907.50004624
1974	99500000
1975	110499950
1976	143000000
1977	203499950
1978	201547652.005
1979	230002717.32999998
1980	251369175.645
1981	274136464.48499995
1982	275035625.735
1983	275414911.975
1984	336065310.695
1985	388672312.5
1986	434343938.935
1987	479704044.94
1988	432516977.3390558
1989	364852438.9310345
1990	370035052.3589494
1991	385047078.0747456
1992	405571490.9329017
1993	382051257.6541183
1994	405747752.35467607
1995	488061157.455683
1996	485036461.1486487
1997	543053756.6539924
1998	589828242.2451994
1999	637732891.9860628
2000	681797431.0381134
2001	746199559.6642076
2002	741081524.4431211
2003	738677764.5539325
2004	790621494.8331181
2005	844355948.9308339
2006	947425400.1331978
2007	1041867997.5231674
2008	1016908913.0320014
2009	1058470185.3919799
2010	1141227090.6213782
2011	1249670801.2235675
2012	1320068197.2592907
2013	1304897729.3111024
2014	1674662191.0408258
2015	1874525949.325991
2016	2023405455.6033192
2017	2138439152.3443267
2018	2303506946.989482
2019	2400383800.9275055
2020	2069979917.3220308
2021	2897226945.2178082
2022	3064946752.5643563
2023	3425904777.8386545