Year	constant 2010 US$
1970	25550.1487156844
1971	27024.9544889288
1972	27706.2415657158
1973	29270.5818104188
1974	29624.7318669196
1975	29895.4235508555
1976	30425.4473423155
1977	30728.7052811651
1978	30930.1963557134
1979	31821.1090258464
1980	34161.2417444458
1981	35752.1778304484
1982	35885.6806208661
1983	36108.9637021207
1984	38224.4908789255
1985	40181.81763799
1986	39409.2133297469
1987	38567.1065303672
1988	37110.7171558085
1989	36600.9803578358
1990	36687.2157108415
1991	38793.1403136783
1992	39262.4577571149
1993	39992.4587142935
1994	41757.0540349641
1995	43875.5335573481
1996	46293.9525324263
1997	49955.5066577919
1998	50662.3374600866
1999	52031.7552700893
2000	55733.6883059104
2001	57960.4331978484
2002	56878.4753752542
2003	57620.279584201
2004	61441.6496204008
2005	67263.9740785394
2006	70912.7686282006
2007	71698.7660650244
2008	72813.4491536044
2009	66783.7874735495
2010	68568.6281428435
2011	69514.2092624062
2012	71480.653891839
2013	72452.9498123802
2014	73075.1844481528
2015	72051.4773925225
2016	70249.3306097337
2017	71698.0340018849