Year	current US$
1981	11487950000
1984	9656230000
1985	20283740000
1988	19664800000
1989	20076120000
1990	26866280000
1991	50091630000
1992	85705390000
1993	154608870000
1994	264064550000
1995	161757610000
1996	199289860000
1997	324919450000
1998	238881100000
1999	217306400000
2000	159676720000
2001	131329560000
2002	70956000000
2003	105996330000
2004	178901660000
2005	262558190000
2006	412582500000
2007	839109490000
2008	708993330000
2009	846840030000
2010	1106555750000
2011	1010283230000
2012	1038243750000
2013	970750770000
2014	823807690000
2015	559708590000
2016	718616858821.2931
2017	816859853973.5409
2018	930145210000
2019	1181063220000
2020	1513020060000
2021	1554528280000
2022	1455750630000