Year	current US$
1975	18300020000
1976	20199990000
1977	22518250000
1978	26576140000
1979	29197590000
1980	29359340000
1981	21847680000
1982	25712710000
1983	33741559999.999996
1984	35425550000
1985	59362550000
1986	83713670000
1987	87105490000
1988	108099020000
1989	154465670000
1990	119825440000
1991	169096700000
1992	170744100000
1993	181754190000
1994	223999880000
1995	286651490000
1996	375357820000
1997	468630690000
1998	603182200000
1999	694055330000
2000	640456300000
2001	503022880000
2002	401267710000
2003	488647360000
2004	538663689999.99994
2005	592835610000
2006	779542640000
2007	956157630000
2008	388720840000
2009	559195310000
2010	661099200000
2011	594636520000
2012	650811190000
2013	817840280000
2014	786573520000
2015	728485580000
2016	805724439486.291
2017	1100105440292.49