Year	current US$
1995	85000000
1996	79000000
1997	56000000
1998	64000000
1999	94000000
2000	77000000
2001	85000000
2002	93000000
2003	106000000
2004	118000000
2005	103000000
2006	116000000
2007	206000000
2008	236000000
2009	131000000
2010	149000000
2011	180000000
2012	170000000
2013	189000000
2014	151000000
2015	141000000
2016	123000000
2017	150000000
2018	162000000
2019	240000000