Year	constant 2010 US$
1970	164963276883.017
1971	172817201476.779
1972	182214136798.869
1973	187244351777.051
1974	186333975460.762
1975	180887147626.203
1976	182815910988.669
1977	188355319489.941
1978	192536878596.309
1979	194990265640.926
1980	200113061285.821
1981	202040170519.74
1982	202549542486.584
1983	205098521783.873
1984	208420368697.035
1985	212871647888.966
1986	218835266386.424
1987	225386110969.487
1988	230196879441.712
1989	236015686948.245
1990	239737918883.494
1991	244102289254.505
1992	245247118515.795
1993	244335959386.599
1994	247315491535.756
1995	249498335218.032
1996	252443254168.816
1997	256457874683.268
1998	261978523769.361
1999	267318215929.224
2000	272115361596.684
2001	277751378358.168
2002	278988006528.008
2003	280192926172.6
2004	285001568949.17
2005	289543163310.44
2006	293635139432.593
2007	300629256043.084
2008	305021963301.637
2009	309013163672.475
2010	314398680016.141
2011	316740128362.873
2012	324146079353.355
2013	332644198848.879
2014	336877160975.472
2015	342759883755.907
2016	348046378965.281
2017	351996618967.197
2018	355678495957.42