Year	current US$
1987	20000000
1989	993300000
1994	328100000
1995	996400000
1996	4361300000
1997	3968500000
1998	7808700000
1999	53900000
2000	1616400000
2001	917200000
2002	181000000
2003	172900000
2004	433600000
2005	527400000
2006	653600000
2007	3684700000
2008	10556600000
2009	8497700000.000001
2010	3805100000
2011	6425500000
2012	22147300000
2013	10968100000
2014	33685430000
2015	1727300000
2016	896100000
2017	549600000
2018	1041400000.0000001
2019	2763010000
2020	282160000
2021	6527030000
2022	10235160000