Year	constant 2010 US$
1970	4128.72549932541
1971	4497.99755230156
1972	4935.05796992333
1973	5408.60550644781
1974	5536.55121386003
1975	5578.43178268353
1976	6187.11096799952
1977	6468.39618638041
1978	6432.36288429913
1979	6695.69283069345
1980	6880.44034793499
1981	6462.18477145811
1982	6296.50515783906
1983	6064.95378154583
1984	6448.69604349443
1985	6537.07594364785
1986	6853.75559575597
1987	6921.72945303019
1988	6890.23689505896
1989	7563.92952598247
1990	6449.99184988261
1991	6755.85052181904
1992	6723.69351655749
1993	6785.80018571567
1994	6939.22416120331
1995	7416.11131989252
1996	7328.10687811594
1997	7396.49421347239
1998	7211.19651960493
1999	6936.79851241377
2000	7148.39542854272
2001	7108.12949620446
2002	7283.96184483297
2003	7262.9131318932
2004	7551.47419397532
2005	7702.62478942213
2006	7977.52184442945
2007	8341.90664737117
2008	8563.82020199614
2009	8968.31786705951
2010	9337.19418795313
2011	9747.12008007049
2012	9927.2235394383
2013	10249.1389441881
2014	10116.573818377
2015	9700.21363344485
2016	9362.92429752814
2017	9368.07239983465