Year	current US$
1976	1129000000
1977	1952000000
1978	3105000000
1979	3384000000
1980	3590500000
1981	3911300000
1982	3833400000
1983	3852900000
1984	3925000000
1985	3491300000
1986	3939000000
1987	4629300000
1988	6004800000
1989	8325400000
1990	10089000000
1991	11946300000
1992	13287800000
1993	14746800000
1994	18252600000
1995	25407400000
1996	29167900000
1997	29033100000
1998	24120400000
1999	26777600000
2000	32977500000
2001	32589100000
2002	36395800000
2003	40153100000
2004	49780700000
2005	58789300000
2006	69223800000
2007	83443900000
2008	96419900000
2009	81183400000
2010	95969000000
2011	101479700000
2012	107239400000
2013	108575100000
2014	114149100000
2015	110785300000
2016	110761400000
2017	124753100000
2018	131517300000
2019	128911200000
2020	102928300000
2021	123810300000
2022	137678900000
2023	148980200000