Year	current US$
1993	282000000
1994	258000000
1995	1273200000
1996	1495200000
1997	3382926000
1998	597100000
1999	263600000.00000003
2000	81900000
2001	53000000
2002	51300000
2003	50700000
2004	53000000
2005	61700000
2006	147600000
2007	499100000
2008	196300000
2009	142100000
2010	235016000
2011	684000000
2012	45000000
2013	1400000000
2014	774600000
2015	59000000
2016	2265000000
2018	78000000
2019	165200000
2020	205230000
2021	24000000
2022	765330000