Year	current US$
1970	57269998.902455
1971	55440000.522881776
1972	69560001.12928447
1973	97400000.74915585
1974	144870001.0143221
1975	152129999.20547003
1976	161140001.05857837
1977	161330001.88693404
1978	257920000.87536877
1979	382240000.1883507
1980	379580000.0689923
1981	399089994.8179723
1982	410359998.7309427
1983	406099995.87014323
1984	315039998.6878038
1985	380019999.8691678
1986	441279996.5571611
1987	579520002.759993
1988	602630002.9642879
1989	566979997.7485092
1990	1040669999.2269278
1991	1143649999.5738268
1992	1226259991.1335857
1993	903150014.6090988
1994	841989993.6914454
1995	748360003.117472
1996	774780004.8962237
1997	632280006.5670161
1998	584980004.865676
1999	468679997.35847116
2000	447919998.0758128
2001	527880001.1798738
2002	674999996.0120765
2003	1374710008.8316946
2004	878469995.1633812
2005	4062659983.4095764
2006	3028220050.023872
2007	3828670045.131822
2008	3095480019.7910514
2009	1527839993.9462543
2010	1634430003.140122
2011	1864769988.656045
2012	2296739967.6572537
2013	1971779992.9529424
2014	2581090023.2084107
2015	2136830029.6198595
2016	3561689969.8339405
2017	4410090040.193872
2018	4387990009.991451
2019	4216140045.0654345
2020	4867060034.433381
2021	4839350008.446725
2022	6152400038.1995