Year	constant 2010 US$
1970	151031757985.297
1971	155386196738.162
1972	161393366456.798
1973	168439069700.086
1974	165869759906.93
1975	163361022438.797
1976	173219960254.878
1977	176193143810.519
1978	179907150245.773
1979	185498604444.91
1980	185072692868.015
1981	182317889491.541
1982	187815028000.459
1983	193083147217.742
1984	200142410210.489
1985	207924066697.859
1986	218606872381.129
1987	219868734928.557
1988	219380572376.084
1989	220023440219.938
1990	222614946764.733
1991	225362819165.395
1992	230291219291.955
1993	231454718207.57
1994	244106887058.289
1995	252612208399.623
1996	259522085784.846
1997	268385452434.107
1998	275392120889.162
1999	284537542141.755
2000	291657151735.056
2001	296391367109.532
2002	298437795341.001
2003	300623765646.586
2004	311720294510.003
2005	321145013585.275
2006	335014535884.356
2007	335736761747.321
2008	336043958698.388
2009	319188971446.775
2010	327262172001.618
2011	333118460081.517
2012	334380068982.082
2013	340533814913.871
2014	347708861773.123
2015	353916328708.256
2016	360584037709.546
2017	367544234936.774
2018	373541906685.974