Year	current US$
1995	87000000
1996	57000000
1997	176000000
1998	143000000
1999	93000000
2000	68000000
2001	57000000
2002	63000000
2003	70000000
2004	79000000
2005	100000000
2006	201000000
2007	317000000
2008	382000000
2009	545000000
2010	792000000
2011	1500000000
2012	2634000000
2013	2618000000
2014	2713000000
2015	2535000000
2016	2855000000
2017	3214000000
2018	2830000000
2019	2004099975.58594
2020	340000000