Year	current US$
1977	61884058.00091021
1978	55748792.297463104
1979	69130434.81600499
1980	100386473.4784481
1981	109951690.8743732
1982	107198067.68463711
1983	118502415.51618451
1984	138695652.2020977
1985	202560386.47342998
1986	180821256.0386475
1987	243671497.5845416
1988	227777777.77777818
1989	252608695.6521743
1990	260579710.1449272
1991	233816425.1207726
1992	223584927.53623208
1993	249620000
1994	265801987.49644142
1995	309680065.10134
1996	321153871.7678361
1997	318051308.3138488
1998	308069218.7167375
1999	391797319.2846506
2000	386909193.645812
2001	335260213.85964704
2002	378071614.339921
2003	588361622.97598
2004	800247263.81794
2005	789100420.8455169
2006	858897573.005589
2007	1113737408.989045
2008	1592445666.659368
2009	1516009420.995166
2010	1911327316.5296922
2011	2561514618.2899103
2012	2537579918.050897
2013	2837666390.915751
2014	2724687533.067947
2015	2936812670.194327
2016	2754506455.422533
2017	3265642172.39769
2018	4509285550.397779
2019	4653753307.302882
2020	4318052359.582398
2021	5374601415.892554
2022	6820739980.651314
2023	7218497206.749249