Year	constant 2010 US$
1970	9287213008.33808
1971	9842535441.65149
1972	10262334553.1675
1973	10849377349.536
1974	10907509252.6556
1975	11093501092.7836
1976	11402857905.7581
1977	11251540160.1074
1978	11997279468.0997
1979	12036531833.0376
1980	12672876859.5606
1981	12838663545.0686
1982	12967234565.5677
1983	12942616561.1019
1984	13240364661.2746
1985	13374516673.99
1986	14459648622.5458
1987	15589369174.6163
1988	16758029924.7804
1989	17785458686.4131
1990	18612406669.2511
1991	20138487993.235
1992	19380774696.176
1993	20225365866.9657
1994	20735637075.3019
1995	22363112229.9422
1996	22773740761.6381
1997	23767443186.9344
1998	25056328037.3467
1999	27110366006.7587
2000	28138099518.4589
2001	28957438815.238
2002	29536568572.8076
2003	30722348303.7236
2004	31522455632.9733
2005	32351786387.8505
2006	32728024914.1149
2007	34508077871.8335
2008	35779026041.8345
2009	33797497662.5545
2010	35713669668.1909
2011	37328466239.9537
2012	38253658836.9759
2013	39231163551.172
2014	41522126487.142
2015	41835432336.5177
2016	43329495699.2712
2017	44411678949.2177
2018	45788579751.296