Year	current US$
1996	205000000
1997	110000000
1999	39500000
2001	87000000
2002	1780000000
2003	412000000
2005	93200000
2007	367360000
2008	170300000
2009	349300000
2010	943050000
2011	2771770000
2012	317500000
2014	1790000000
2016	200000000
2017	2400000000
2018	3645700000
2019	3180480000
2020	2686910000
2021	5528400000
2022	2487160000