Year	constant 2010 US$
1970	13499.972600144
1971	14611.5236493016
1972	15910.286288328
1973	16126.1532762738
1974	16633.7388227138
1975	16597.9359876265
1976	16293.113752891
1977	16172.796583402
1978	16605.6619666395
1979	17239.1774559942
1980	16974.8878510868
1981	17635.8041575282
1982	17538.6031760131
1983	17765.0874091223
1984	17283.8807075276
1985	17621.3849092858
1986	18294.4057352504
1987	19447.3764748141
1988	19849.9354787523
1989	19722.646388135
1990	20673.5708121268
1991	21157.6503995061
1992	21974.2511015754
1993	22277.8041250798
1994	23293.1363334678
1995	24279.677780776
1996	24791.2018798149
1997	25026.2702347932
1998	25351.6912073991
1999	25241.3595945083
2000	25936.1979371186
2001	25916.6755473308
2002	25544.1132776488
2003	25334.6818700744
2004	26137.9379432631
2005	27262.2192868805
2006	28418.6557453142
2007	29606.8079249838
2008	29387.993447808
2009	28882.4426207481
2010	30089.7080812661
2011	31172.0890934043
2012	30856.1281099425
2013	31711.53663113
2014	32795.1248471299
2015	32884.671601689
2016	33518.8012981271
2017	33965.3729450349