Year	current US$
1985	184175785962.818
1986	181415187964.823
1987	191516611268.854
1988	182735716483.09
1989	165762987662.303
1990	185450744014.551
1991	180172634878.226
1992	171899805855.549
1993	151696363797.564
1994	149182574803.738
1995	174281197067.556
1996	192721170505.743
1997	200994497627.348
1998	218439300905.696
1999	214173989677.684
2000	225893220685.792
2001	238312220509.971
2002	282417382839.254
2003	325386560241.675
2004	384875644475.868
2005	469924938826.625
2006	558519347549.675
2007	711720582871.96
2008	854686556888.017
2009	865542434962.513
2010	963377326972.502
2011	1084321637152.46
2012	1168672353476.64
2013	1420292420866.28
2014	1517507718976.83
2015	1405487497102.99
2016	1288533980400.72
2017	1322766296072.27