Year	constant 2010 US$
1970	18672.8979880849
1971	19314.6518605751
1972	20676.5199301743
1973	22157.3979145159
1974	21437.051967128
1975	21762.7693362932
1976	22461.329449732
1977	23229.813093542
1978	24251.9012119922
1979	25394.6166352164
1980	25874.4108477
1981	26726.1517556545
1982	27486.5808994702
1983	28287.9548750122
1984	29397.1368139515
1985	30801.1440431165
1986	31624.2009229022
1987	33026.7939644157
1988	35130.4419435191
1989	36719.4699054666
1990	38377.4284612785
1991	39544.6072923288
1992	39845.2715993194
1993	39553.8606284633
1994	39793.82145873
1995	40736.1013690394
1996	42027.421545499
1997	42420.6800759701
1998	41800.6953924039
1999	41614.9412915125
2000	42796.2400623106
2001	42909.0283546518
2002	42812.7401973425
2003	43443.580363437
2004	44518.0823938612
2005	45378.843457084
2006	46190.6169055911
2007	47070.6206421524
2008	46339.7839101875
2009	43777.3860903918
2010	45657.3860559886
2011	45785.5540327272
2012	46473.3720219935
2013	47775.0945426456
2014	48126.0854898905
2015	48907.6477225009
2016	49044.9379963491
2017	50210.0275262497