Year	constant 2010 US$
1978	7780.89261036566
1979	7097.47518046692
1980	4956.00907673786
1981	4565.24433535805
1982	5526.09810053828
1983	5635.355901887
1984	4941.14532972891
1985	4856.48102076682
1986	4216.23015453608
1987	4090.48654921824
1988	3694.26271732317
1989	3799.18830147905
1990	4146.86077330377
1991	4549.33206426217
1992	4589.22406154837
1993	4574.33290354277
1994	4397.78456109646
1995	4500.21704773396
1996	4581.6252850507
1997	4581.29567818427
1998	4652.80288726371
1999	4580.95649725694
2000	4815.38544782307
2001	4797.51953348776
2002	5092.66994808567
2003	5465.30001999389
2004	5619.06463769567
2005	5728.82415554987
2006	5960.35465484396
2007	6390.5418252706
2008	6340.15224123358
2009	6311.27402883319
2010	6604.28462948463
2011	6699.21597681633
2012	6166.28406949779
2013	6077.86875852291
2014	6253.30721680801
2015	6086.67563686027
2016	6811.26678502187
2017	6962.97359464122