Year	current US$
1976	12498705.2250042
1977	17800000
1978	27700000
1979	33800000
1980	40500000
1981	38500000
1982	44700000
1983	54200000
1984	64000000
1985	69500000
1986	81740740.74074078
1987	97074074.07407403
1988	115555555.55555537
1989	134322222.22222188
1990	149333333.33333364
1991	170870370.3703705
1992	191270370.37037003
1993	203051851.851852
1994	236655555.55555585
1995	264077777.77777764
1996	265733333.33333364
1997	287244444.4444443
1998	318229629.6296298
1999	307400000
2000	325249750.0797023
2001	278512320.9541074
2002	259403193.70542988
2003	328559553.8160174
2004	377772686.4472739
2005	468518583.93825966
2006	360672757.54259276
2007	609724502.5715626
2008	533607159.53280354
2009	505558317.7607368
2010	650883325.0681375
2011	675576730.921285
2012	680241204.8636518
2013	736069887.2256631
2014	824574943.9549856
2015	864874043.876285
2016	826895918.091007
2017	929938857.753044
2018	1016480424.5663137
2019	1112093454.7862082
2020	383539879.6914805
2021	615322969.9699252
2022	1157551343.7037
2023	1272265898.518522