Year	current US$
1995	58000000
1996	65000000
1997	74000000
1998	92000000
1999	100000000
2000	121000000
2001	115000000
2002	64000000
2003	76000000
2004	157000000
2005	209000000
2006	235000000
2007	271000000
2008	350000000
2009	257000000
2010	309000000
2011	478000000
2012	560000000
2013	574000000
2014	668000000
2015	621000000
2016	750000000
2017	671000000
2018	697000000
2019	747000000
2020	145000000