Year	current US$
1990	68000000
1995	1760000000
1996	1232200000
2000	3575000000
2001	1700000000
2002	360000000
2005	34800000
2006	124700000
2007	61900000
2008	2325000000
2009	2705500000
2010	4213029999.9999995
2011	5403520000
2012	3360000000
2013	9102100000
2014	165000000
2015	1578070000
2016	376100000
2017	773200000
2018	747210000
2019	782950000
2020	408970000
2021	1134000000
2022	502000000