Year	current US$
1976	159600000
1977	197440000
1978	246400000
1979	280080000
1980	251240000
1981	253000000
1982	243280000
1983	238360000
1984	230320000
1985	271000000
1986	265016539.06000462
1987	270100000
1988	330500000
1989	365300000
1990	295984424.434169
1991	307896049.89605
1992	348649456.7925853
1993	369893354.5021987
1994	408535013.6044675
1995	487630288.8962923
1996	481324957.1673326
1997	634518201.2847967
1998	748943460.8794973
1999	823000000
2000	947300000
2001	977800000
2002	1031000000
2003	1075409896.78462
2004	1037272368.31335
2005	1092950000
2006	1205470000
2007	1289960000
2008	1277370000
2009	952257767
2010	1054239747.1412001
2011	1152281435.89269
2012	1303299338.8529801
2013	1430525768.68033
2014	1419911855.48312
2015	1470813487.37392
2016	1715347989.71874
2017	1803529948.94298
2018	1923457792.61102
2019	1982754099.48406
2020	1475706364.7442498
2021	2251261172.02858
2022	2697814196.62672
2023	2598039575.73666