Year	current US$
1985	937670000
1986	2151500000
1987	2934250000
1988	1078100000
1989	943800000
1990	1925800000
1991	2705770000
1992	3023160000
1993	6731400000
1994	7399850000
1995	8373879999.999999
1996	9684600000
1997	8861920000
1998	11767040000
1999	12045890000
2000	9975220000
2001	8509680000
2002	2586820000
2003	3861970000
2004	5090390000
2005	5456180000
2006	5406900000
2007	5950220000
2008	3297690000
2009	3296850000
2010	1916000000
2012	5347360000
2013	8852080000
2014	8655490000
2015	9059180000
2016	10935502052.7451
2017	11867884008.675402
2018	12186940000
2019	12471500000
2020	22199380000
2021	20573700000
2022	14080820000