Year	constant 2010 US$
1970	269748371899.56
1971	280264931753.675
1972	310117456340.871
1973	353438846020.508
1974	388230407723.831
1975	424338683632.499
1976	455530860316.496
1977	470996468903.179
1978	496178110455.701
1979	517761252335.736
1980	563878905205.678
1981	555881239533.563
1982	495820791262.003
1983	399124653885.895
1984	405042751803.662
1985	425290997466.479
1986	465764173977.269
1987	471898062797.879
1988	470307746543.417
1989	462645711157.74
1990	453365662438.058
1991	498067910051.55
1992	528329177132.203
1993	556361366020.191
1994	620397120287.893
1995	576789749604.659
1996	603125996509.165
1997	672243612130.461
1998	698370445162.034
1999	647395137767.485
2000	677639517154.129
2001	658968136396.948
2002	634618205530.266
2003	624606909068.482
2004	693448682426.619
2005	749186382045.867
2006	829784211572.914
2007	935008880004.31
2008	1020903898974.56
2009	945619954711.424
2010	1057776375560.94
2011	1150408765504.74
2012	1199924607350.9
2013	1228382290755.22
2014	1202846940902.71
2015	1147811198998.31
2016	1086136172485.93
2017	1083978082917.34
2018	1106590948079.48