Year	constant 2010 US$
1970	20809.4905091134
1971	21130.7732434072
1972	21945.9033694069
1973	23067.4531826403
1974	22016.7017843434
1975	21754.1521535091
1976	22563.3465727076
1977	23260.9781545203
1978	24164.4542056048
1979	23763.4351218135
1980	23051.5418383618
1981	23788.7573205533
1982	23674.1952488712
1983	24256.1526356634
1984	25928.362495256
1985	26810.049318952
1986	27469.9621140871
1987	28270.6233076696
1988	29606.0062799185
1989	29960.2267492214
1990	29909.7007225867
1991	29593.3585382849
1992	30109.9993903046
1993	30414.1809888801
1994	31408.0034396228
1995	32079.5036003503
1996	33046.1562408887
1997	34393.9099620779
1998	35906.6490245937
1999	37044.3302320224
2000	38076.0606045356
2001	38381.8371260946
2002	38601.9641887309
2003	39232.394732922
2004	40346.4147703228
2005	41076.0455859368
2006	42089.1068985844
2007	42011.0267816015
2008	40768.8877913398
2009	39684.8177065874
2010	40675.7200278074
2011	41364.6769096487
2012	42699.7128551535
2013	42982.918562032
2014	44152.7496893529
2015	45006.6599476225
2016	44927.2812355792
2017	45967.8332674055