Year	constant 2010 US$
1970	10257.851142489
1971	10595.8008753683
1972	10884.5394276013
1973	11437.3851608644
1974	11720.305087535
1975	11686.5734146205
1976	12149.6741533158
1977	12458.8709248735
1978	12740.1839455833
1979	13562.103237205
1980	14345.0965639088
1981	14558.3027865163
1982	14689.7105603356
1983	14658.0490459438
1984	15087.2763316501
1985	15515.3446775862
1986	16145.027928976
1987	16731.1519864805
1988	17406.7548629073
1989	18084.1450534652
1990	18438.4649280694
1991	18919.2501773745
1992	19232.589884081
1993	18636.5147273503
1994	18918.0340165559
1995	19206.6174884983
1996	19403.5096871343
1997	20030.0929452996
1998	20682.1049177045
1999	21204.3442132566
2000	21687.8710315909
2001	21809.4182917865
2002	21784.9447647439
2003	21867.5492106782
2004	21940.4746154309
2005	22115.0009613817
2006	22368.1645217459
2007	22513.9019457728
2008	22123.37715724
2009	21679.469641955
2010	21872.0959009524
2011	21831.9122747862
2012	20913.2887570821
2013	20164.2775104136
2014	20032.1107024168
2015	20428.0515523807
2016	20728.087198217
2017	21081.5248495328
2018	21235.0767644689