Year	constant 2010 US$
1970	13605.7249693279
1971	14672.5789754337
1972	16048.8083866908
1973	17266.5067084485
1974	16221.1648053944
1975	17023.8802265078
1976	17952.7958897376
1977	18265.3609105005
1978	19262.4561613116
1979	19672.7606266039
1980	19670.7994085706
1981	19105.355039205
1982	18792.4111026045
1983	18411.714909146
1984	18512.082520524
1985	18849.6863441636
1986	18787.0022714004
1987	18402.5924943389
1988	19090.2956833358
1989	19737.7035272525
1990	19755.6702840467
1991	20200.0316789625
1992	20238.8065021221
1993	19749.145702425
1994	20058.8842788679
1995	20385.11534595
1996	20807.9757882022
1997	21649.1366968986
1998	22341.9938287115
1999	22673.5084023795
2000	23358.1865822016
2001	24264.3235808824
2002	25044.9564525759
2003	26248.7650022926
2004	27483.2489749669
2005	27368.4807129526
2006	28635.7333800126
2007	29280.1835250516
2008	28986.6119448047
2009	27880.2378850099
2010	26366.3504599765
2011	23829.9582730557
2012	22980.4339038806
2013	22224.4790825661
2014	22718.6399231961
2015	22647.0534067761
2016	22667.1231653851
2017	23098.4575394138