Year	current US$
1984	111428574.61224498
1985	231111111.1111111
1986	136842104.32132962
1987	152469487.257091
1988	191065571.20700386
1989	228467540.4577927
1990	212221824.5598229
1991	259372152.46125796
1992	305692108.2839906
1993	413821993.3858539
1994	614700001.532738
1995	658400005.8407586
1996	769300009.2288984
1997	720900005.0794457
1998	612099978.4709238
1999	642605485.9790761
2000	660890000
2001	672540000
2002	676940000
2003	750080000
2004	974190000
2005	1171610003.5922601
2006	1513520760.8126855
2007	1925686523.5366893
2008	2652146160.609843
2009	2734099407.760507
2010	3518552788.507256
2011	4493663456.61865
2012	6147142346.171118
2013	7190675749.966075
2014	7742489762.694695
2015	7479510329.8820715
2016	6664547720.2284975