Year	current US$
1995	12000000
1996	26000000
1997	45000000
1998	55000000
1999	51000000
2000	56000000
2001	59000000
2002	85000000
2003	97000000
2004	199000000
2005	255000000
2006	300000000
2007	430000000
2008	494000000
2009	496000000
2010	641000000
2011	756000000
2012	874000000
2013	1007000000
2014	1101000000
2015	1057000000
2016	1033000000
2017	1218000000
2018	1335000000
2019	1543000000
2020	330000000