Year	constant 2010 US$
1970	36957455879.2305
1971	42054060246.7699
1972	47158382697.8282
1973	47323038192.4082
1974	49201140809.0311
1975	46764753021.5861
1976	48550236781.7877
1977	52886809049.93
1978	49463681733.8828
1979	52345404860.7851
1980	54084785140.779
1981	54054558860.953
1982	49554612081.5648
1983	49341568342.1476
1984	49220612894.7145
1985	52263243527.4281
1986	53248940866.4258
1987	55576153961.9762
1988	59500401375.5791
1989	62154680428.3936
1990	65568425124.2653
1991	71023500466.6609
1992	71120763814.7655
1993	70250295509.1793
1994	73865243722.2716
1995	74007010910.7256
1996	77245361148.7561
1997	77817048965.3059
1998	80486108595.0524
1999	81472632639.7957
2000	86221343283.5141
2001	85263797645.8741
2002	82820380210.7426
2003	86002972179.164
2004	86811917392.8103
2005	87031361280.97
2006	88032838077.8246
2007	92121362862.8252
2008	93601645589.1112
2009	86883264138.2697
2010	84635993965.1121
2011	90264148936.2842
2012	91081861839.831
2013	92506452517.7308
2014	92133706498.7576
2015	94232800063.7476
2016	98315192763.5156
2017	102163890767.974
2018	105512539074.723