Year	constant 2010 US$
1970	5862.08992944495
1971	6633.52083532924
1972	6911.31584136097
1973	7739.85585822139
1974	8375.99161701271
1975	7992.29079210687
1976	8040.05021438745
1977	8002.85829595979
1978	7755.61836203506
1979	7681.66531465371
1980	7904.96370132141
1981	8052.89791813904
1982	8187.60446596968
1983	8049.01487555627
1984	7777.60642044577
1985	7806.05773282528
1986	8238.61940573477
1987	8676.46491926715
1988	9278.36672689792
1989	9565.3941790778
1990	10203.5080991387
1991	10659.6013153998
1992	11173.1924924771
1993	11282.4953631662
1994	11367.5479427991
1995	11395.7901619974
1996	11752.2161312708
1997	12090.6499077345
1998	12606.2403782516
1999	13193.7987735653
2000	13584.8123095882
2001	13617.3901844626
2002	13720.796183539
2003	13631.9470097707
2004	13947.4632287069
2005	14142.3985263629
2006	14329.5202681976
2007	14662.3542231845
2008	14842.5508012979
2009	14481.9166453282
2010	14822.3222757725
2011	14309.0919692846
2012	13577.9251744433
2013	13489.1442158838
2014	13873.8799253075
2015	14250.5106508993
2016	14640.1151208943
2017	15016.7755864722
2018	15433.1415286901