Year	constant 2010 US$
1970	153586390842.543
1971	161421017488.825
1972	170961429991.439
1973	183463260346.206
1974	188932868598.161
1975	192573479256.845
1976	201552021504.077
1977	206640688728.292
1978	213977739834.191
1979	223230181270.411
1980	223246763064.604
1981	226042552102.643
1982	229354486833.694
1983	229554063163.028
1984	230299033377.739
1985	236680314236.98
1986	242082638812.822
1987	246977420229.823
1988	252137156335.247
1989	258884900673.611
1990	264393895322.258
1991	272850081782.645
1992	277739701785.098
1993	276714292373.433
1994	282541576813.127
1995	286939137900.384
1996	292594112731.68
1997	296868018267.365
1998	304213487679.992
1999	310168716025.206
2000	319245711615.916
2001	322474401899.29
2002	325857563382.945
2003	328392581324.533
2004	333549507133.703
2005	337062641673.586
2006	341487156520.28
2007	347886610469.699
2008	355004476215.091
2009	357432329676.225
2010	365132962313.629
2011	367402603472.72
2012	370505423766.831
2013	372760583139.147
2014	375064859587.079
2015	377722006283.726
2016	382213498996.925
2017	385578075626.84
2018	389331244087.25