Year	current US$
1975	576010000
1976	661000000
1977	620000000
1978	723000000
1979	1056010000
1980	772530000
1981	621220000
1982	1034380000.0000001
1983	1315560000
1984	1442630000
1985	2211400000
1986	4801260000
1987	8049500000
1988	8238000000
1989	8493120000.000001
1990	7285890000
1991	6761040000
1992	7770800000
1993	10556370000
1994	12992300000
1995	15196200000
1996	21877400000
1997	28467060000
1998	58960900000
1999	50562290000
2000	38584170000
2001	37775700000
2002	38167730000
2003	41355490000
2004	75105190000
2005	106522720000
2006	135253470000
2007	231569720000
2008	190715380000
2009	123238720000
2010	107418060000
2011	103250420000
2012	100925430000
2013	115306850000
2014	107247760000