Year	constant 2010 US$
1970	18305.4292329479
1971	18878.6937958966
1972	20008.5375099071
1973	21329.1537138343
1974	21622.0503447336
1975	21289.5462849028
1976	22475.4107323239
1977	22459.4133922052
1978	23195.2049801646
1979	23435.9099481149
1980	23425.7540526403
1981	22624.5916986363
1982	22676.4541362976
1983	22857.5581636752
1984	23591.6650559114
1985	24261.9705593882
1986	25446.624826432
1987	26238.4289965407
1988	27735.8138399007
1989	28545.1805677608
1990	29346.1842040953
1991	29825.108946998
1992	30353.3967442465
1993	30583.0431732957
1994	31600.4676858626
1995	32067.0419751482
1996	32261.2005573001
1997	33266.6040063558
1998	33867.8623457201
1999	34575.3941016737
2000	35414.7444509005
2001	35145.6968780464
2002	35672.0631808952
2003	35563.0475443909
2004	36308.0443933834
2005	36489.0515370991
2006	36809.545256385
2007	37835.8826760915
2008	37223.3129922508
2009	35565.5004117916
2010	37246.5542732993
2011	36011.1410651043
2012	36364.0463289583
2013	36014.2834022098
2014	35966.2778559762
2015	36198.5518433751
2016	37152.4974822671
2017	37930.3236366728