Year	constant 2010 US$
1970	26689.2994122059
1971	27813.6333232067
1972	29103.2450633527
1973	29686.7053258765
1974	29383.7052610206
1975	28537.2534051832
1976	29006.869490074
1977	29987.2793668732
1978	30650.2561227974
1979	30978.5444029581
1980	31666.4252863275
1981	31796.9495664892
1982	31691.4019470165
1983	31952.9171360122
1984	32354.0416784635
1985	32899.4806149213
1986	33645.6172093926
1987	34435.8228834625
1988	34913.3024278743
1989	35507.5690709077
1990	35699.0902540062
1991	35897.5116176119
1992	35670.4195611745
1993	35215.7145030637
1994	35362.1305079368
1995	35436.6463411926
1996	35696.9186519533
1997	36177.3558124862
1998	36846.4819863403
1999	37418.6103998765
2000	37876.6554054611
2001	38417.2873142622
2002	38297.5245046755
2003	38178.6194296199
2004	38567.7986297234
2005	38932.1885314991
2006	39235.3993812068
2007	39812.5543602468
2008	39884.2737566172
2009	39904.4302067639
2010	40179.2123098353
2011	40030.8640140287
2012	40534.1645119698
2013	41121.2722077754
2014	41139.5287519922
2015	41384.1458143159
2016	41566.0252775275
2017	41647.3358425144
2018	41763.2478292448