Year	current US$
1975	23307043.08
1976	17744260.79
1977	26497917.18
1978	44315269.47
1979	54061260.22
1980	59399974.82
1981	47657344.82
1982	39408866.88
1983	36476615.91
1984	32497501.37
1985	66998626.70999999
1986	68436607.36
1987	88175628.66
1988	73225212.1
1989	75954139.71
1990	106917976.4
1991	93014381.41
1992	116550643.9
1993	125616882.3
1994	103187164.3
1995	112110941.548004
1996	110719833.683181
1997	91724874.6223142
1998	84462836.0284946
1999	86308388.6924512
2000	73163954.8545947
2001	88167264.5797696
2002	137653692.706477
2003	153798953.420543
2004	155463489.680968
2005	177256553.18265
2006	212030181.372183
2007	344376072.21803
2008	432735385.808445
2009	455566651.299885
2010	473206780.830655
2011	785135446.147004
2012	827417011.957934
2013	894763366.194044
2014	921490603.724099
2015	816930232.686645
2016	827242532.87385
2017	885444663.073199
2018	1022573591.76964
2019	971700936.136416
2020	997137083.775438
2021	1131458579.74862
2022	1106994887.60067
2023	1153620000