Year	constant 2010 US$
1967	8478097.0536467
1968	9244189.16773394
1969	9499550.45799265
1970	10112428.270918
1971	10112428.270918
1972	10112428.270918
1973	11031738.8078226
1974	11695683.932813
1975	13125725.2935462
1976	13738598.984816
1977	14096111.3858271
1978	14811127.9445381
1979	14811127.9445381
1980	15219711.7792698
1981	15628295.6140015
1982	17058336.9747347
1983	18999105.0376408
1984	22880641.1634531
1985	25178921.6273704
1986	24310682.5241863
1987	24923556.2154561
1988	28268687.7251192
1989	30106150.6137235
1990	30671522.224965
1991	31331127.8744842
1992	31236898.4638014
1993	31519581.512619
1994	31990728.5660334
1995	32785070.8012655
1996	32901391.1421999
1997	33394910.74808
1998	33895835.4632249
1999	34404274.135484
2000	35092356.6810295
2001	35675566.9150358
2002	37343423.5103121
2003	37963856.2534174
2004	40118715.405543
2005	47154438.2620494
2006	49096261.4394518
2007	51006710.5199952
2008	46783502.0678187
2009	44788167.2142273
2010	44975007.1397972
2011	46737236.548479
2012	46783972.0140903
2013	47953569.8026668
2014	49694083.2014681
2015	50130549.256686
2016	46088589.7516425
2017	40558706.0577977