Year	constant 2010 US$
1965	7046419147.74302
1966	7640861161.43201
1967	8025758409.17376
1968	8106313877.28336
1969	8348273446.39207
1970	8852753322.9056
1971	9024402411.09656
1972	9549454614.42148
1973	10273181063.2412
1974	10384098934.4886
1975	10511697363.9296
1976	11751811258.5499
1977	13127852519.7569
1978	13423505132.0133
1979	12242282839.1785
1980	10916654085.0409
1981	9920514928.36571
1982	9136839117.5369
1983	9260218094.59855
1984	9540003070.67946
1985	9793055561.10799
1986	9795231982.90149
1987	9883703886.32597
1988	10043938286.9752
1989	10174582030.2908
1990	11696633865.4832
1991	11804158597.7503
1992	12632788631.7126
1993	13315264967.5761
1994	14109633612.6744
1995	15015611961.3601
1996	15323361270.5088
1997	15574607723.2658
1998	15514148656.533
1999	15906935930.8035
2000	16268173397.242
2001	16585051630.1777
2002	16746548889.088
2003	16895919992.0193
2004	17195126101.0982
2005	17844811851.4984
2006	18658535266.1224
2007	19787376697.0178
2008	19870483628.0523
2009	18753762441.2586
2010	18996250000
2011	19559992282.7463
2012	20152828167.4749
2013	20828699055.3982
2014	20764322295.1005
2015	21353001950.9745
2016	21669654636.8358
2017	22129589729.5042
2018	22663235182.6136