Year	current US$
1976	609000000
1977	730000000
1978	870000000
1979	1188000000
1980	1276000000
1981	1551000000
1982	1412000000
1983	1304000000
1984	1192000000
1985	1281000000
1986	1432000000
1987	1574000000
1988	1975000000
1989	2202000000
1990	2756000000
1991	2950420000
1992	3436000000
1993	3187000000
1994	3420000000
1995	4003000000
1996	3830000000
1997	4196000000
1999	8895599965.957678
2000	11001806781.812038
2001	11250990985.158588
2002	9520383269.171509
2003	10849296555.321978
2004	13710778572.605816
2005	14457381216.71375
2006	16295290397.358864
2007	20112472805.79393
2008	24801975342.775562
2009	19777816521.135468
2010	20074263816.13359
2011	19412508522.501854
2012	15886223619.881678
2013	16147904584.215136
2014	16793891680.534279
2015	16581710781.849562
2016	14789670711.099724
2017	17510745541.449333
2018	20872216402.921993
2019	21102335631.684555
2020	17358524543.02174
2021	25811705460.981674
2022	29501751492.430702
2023	29197738752.15985