Year	current US$
1990	44000000
1991	378600000
1992	160000000
1993	1879300000
1994	1242800000
1995	2329200000
1996	1614000000
1997	1672800000
1998	1260000000
1999	182000000
2000	1764000000
2001	672000000
2002	126000000
2003	454300000
2004	322110000
2005	119400000
2006	645800000
2007	2083000000
2008	1820000000
2009	4604680000
2010	1509250000
2011	296460000
2012	1033730000
2013	1204290000
2014	480000000
2015	5141390000
2016	2478400000
2017	1700000000
2018	19120000
2019	52500000
2020	59610000
2021	401710000
2022	245180000