Year	constant 2010 US$
1970	9875.51040635389
1971	10317.3441567041
1972	10772.1366577753
1973	11260.7877476177
1974	11448.7759217328
1975	11649.3469985496
1976	12151.5439523912
1977	12507.6697748573
1978	12838.2693663888
1979	13269.9562067225
1980	13510.0809830306
1981	13524.5139869759
1982	13592.6689361876
1983	13688.4686355383
1984	13842.6298487704
1985	14109.2455151321
1986	14567.9434682322
1987	15051.6371753882
1988	15528.833611895
1989	16031.9587522258
1990	16471.9465807363
1991	16840.9517421311
1992	17112.046531758
1993	16942.2280304484
1994	17193.7655400647
1995	17479.3623651361
1996	17778.725069565
1997	18084.8357820495
1998	18621.1295773535
1999	19187.7729410808
2000	19703.3089745414
2001	20012.3527424689
2002	20106.1739473866
2003	20224.0489591284
2004	20472.0787915253
2005	20743.9875943734
2006	21077.5355171373
2007	21355.3810171592
2008	21327.2327001582
2009	21033.007176716
2010	21146.8049403411
2011	21185.7962198277
2012	20889.3325038776
2013	20690.7170514944
2014	20804.7212684324
2015	21109.9029131933
2016	21446.4800863571
2017	21787.5001571678
2018	22036.0680883885