Year	current US$
1973	215189818.453694
1974	240562515.312408
1975	539494041.358776
1976	561580985.482429
1977	256332928.439256
1978	376000000
1979	524777225.963006
1980	323000000
1981	403500500.501083
1982	449983574.744337
1983	525177982.516022
1984	709303864.966628
1985	199000000
1986	582146783.604271
1987	1402028373.22135
1988	780040370.87376
1989	1858810760.37533
1990	523973812.579135
1991	1174903586.09049
1992	1555822540.73453
1993	995477654.427496
1994	2086178316.7373
1995	1578962803.98616
1996	2102759278.26157
1997	3803322072.93511
1998	2867372259.10464
1999	1526272183.159
2000	2469678275.31485
2001	3922514360.90263
2002	6125295080.42939
2003	8039974549.34238
2004	14616359180.447
2005	19872059735.0141
2006	28066237858.7066
2007	37194139968.9892
2008	36868368259.0995
2009	40756567639.5597
2010	43360910102.6969
2011	42939095958.6277
2012	41162402109.7631
2013	44811115213.1707
2014	39164808527.8466
2015	35166731240.8315
2016	36133048792.8853
2017	40106765937.0156
2018	37856040837.9341
2019	36931436733.5014
2020	45888850182.0396
2021	45821015281.0885
2022	49772084039.0554
2023	66128554681.5027