Year	current US$
1970	461000000
1971	412000000
1972	519000000
1973	346000000
1974	127000000
1975	624000000
1976	729000000
1977	810000000
1978	863000000
1979	1248000000
1980	1047000000
1981	801000000
1982	1114000000
1983	1655000000
1984	1439000000
1985	2212000000
1986	2028000000
1987	1312000000
1988	1224000000
1989	1150000000
1990	1532000000
1991	3081000000
1992	2077000000
1993	1423000000
1994	1933000000
1995	367000000
1996	2200000000
1997	1149000000
1998	1092259976.8824925
1999	1096190012.5145912
2000	881849988.341331
2001	371069987.2374538
2002	1239040005.4454808
2003	1088059987.6642232
2004	839000006.1988835
2005	550709996.1116904
2006	843240003.0493736
2007	471340000.8678437
2008	734010025.5683068
2009	776520019.5908546
2010	421640004.5156483
2011	888339975.5954747
2012	555840003.3712384
2013	534820008.0394746
2014	636930009.1266632
2015	693589983.9401248
2016	487569988.1315228
2017	542579993.2479863
2018	640339993.4768672
2019	666579998.0163572
2020	806480016.708374
2021	922429988.8610841
2022	839169990.539551