Year	current US$
1974	55409769.736562826
1975	81242765.96623354
1976	109788890.73039342
1977	181085602.4200169
1978	367821604.90061545
1979	403221594.95920116
1980	429573231.35124594
1981	218326651.1619628
1982	135385422.8974723
1983	162292593.02938178
1984	34890271.0680183
1985	119874944.47486234
1986	188795819.08373696
1987	97432309.75469795
1988	303624657.9214702
1989	148649920.89257413
1990	241713999.86777154
1991	270955335.9821083
1992	206515312.94285145
1993	166397686.5485267
1994	184813324.8191214
1995	195950732.30403838
1996	326056613.55684423
1997	264200857.85578763
1998	355363552.93634284
1999	267997414.7646695
2000	301475500.7440774
2001	373547889.8911266
2002	406016890.2137958
2003	475413223.14358413
2004	487554447.181722
2005	885990905.8733764
2006	982929777.0704479
2007	1068345425.9100701
2008	1582716027.5976489
2009	1210923718.0386674
2010	1906944554.4619832
2011	1945860589.939536
2012	2197118415.2662606
2013	2473672111.4484444
2014	2712988740.326286
2015	2340556275.6729565
2016	2215397216.549262
2017	2286713312.589575
2018	2943389336.3784103
2019	3224319954.1746492
2020	1795413357.3691707
2021	2534325697.271073
2022	3374233782.4548345