Year	current US$
1995	143747497.55859402
1996	135134994.506836
1997	126000000
1998	128000000
1999	129000000
2000	130000000
2001	140000000
2002	70000000
2003	89293968.2006836
2004	95639816.2841797
2005	69000000
2006	64161163.330078095
2007	74829299.9267578
2008	302000000
2009	337000000
2015	373000000
2016	439318511.96289104