Year	current US$
1970	336637239.52
1971	2666068522.368
1972	3292873787.236
1973	4499896375.499
1974	4996013582.357
1975	8240569898.221001
1976	8474982151.091999
1977	8967418324.912
1978	11166885382.889
1979	12758875031.525
1980	14118229579.738
1981	12464121304.145
1982	11727098438.746
1983	11117547370.335
1984	10447247687.125
1985	10569079274.359001
1986	13346176545.933
1987	16144789667.228998
1988	17932172115.785
1989	17870105599.267998
1990	21372200893.838345
1991	20895308663.49074
1992	24450224072.16298
1993	24114832304.939743
1994	22243649447.030727
1995	27501347676.36053
1996	27446687125.758472
1997	25791786715.69174
1998	27300956317.036293
1999	29954446149.058453
2000	29207774187.996807
2001	31292896576.94049
2002	32409611580.533264
2003	39403438615.17733
2004	46980467110.80794
2005	50426544692.368996
2006	55951485978.85338
2007	70433332169.14012
2008	95577059230.66489
2009	90655491320.23123
2010	84696534479.02434
2011	92173672222.49138
2012	85199140214.39163
2013	92515040257.47032
2014	90187997292.77338
2015	83994201845.1324
2016	87398990991.21393
2017	98086963479.97122
2018	109208147166.10713
2019	111551319194.53925
2020	113892497846.62622
2021	130160500932.49004
2022	132351248775.31177