Year	constant 2010 US$
1970	47113472391.6132
1971	46218054313.2349
1972	47787066061.3141
1973	51143329676.2441
1974	54691736685.5741
1975	53670481860.9867
1976	55813795442.1651
1977	55837204247.1023
1978	57380678972.5856
1979	55819171545.918
1980	62846891002.9066
1981	53084353447.2628
1982	50960979341.1585
1983	48253810854.5496
1984	49384022503.2085
1985	51589270277.678
1986	53171566665.2659
1987	55802201165.59
1988	64740663017.7141
1989	72349568666.1255
1990	78557723806.6198
1991	75302358025.3874
1992	76119314152.7999
1993	74202403912.9716
1994	74487181659.5592
1995	77014584292.9665
1996	77655542024.9858
1997	82811855022.96
1998	84845259253.998
1999	88045725257.5539
2000	91888013312.5293
2001	93385557130.3115
2002	89357403717.7436
2003	88996664401.1212
2004	96901438526.5171
2005	102776142791.886
2006	104787317353.08
2007	111864033495.501
2008	113981169827.301
2009	106386747554.974
2010	105504844168.632
2011	109956350785.745
2012	110172967292.575
2013	108532041548.042
2014	114826517641.783
2015	117983759066.572
2016	122456383896.524
2017	124635763542.284
2018	128259459049.14