Year	constant 2010 US$
1970	23377.2325923859
1971	23833.2157651421
1972	24829.9215982753
1973	26053.7670598995
1974	25787.0787807083
1975	25461.5005334076
1976	26605.347340076
1977	27528.3902208307
1978	28669.4511878668
1979	29340.3608084708
1980	29040.7342699819
1981	29444.936993344
1982	28606.6458689108
1983	29582.9436263867
1984	31367.5860162451
1985	32315.4976815246
1986	33008.9483672166
1987	33858.3141842392
1988	34965.2928347944
1989	35825.4745155667
1990	36057.4371491625
1991	35463.5079125751
1992	36105.235424804
1993	36617.6034543147
1994	37595.7098390887
1995	38175.2267530725
1996	39094.3489071688
1997	40314.9784573654
1998	41587.8549499219
1999	43124.7739000688
2000	44516.0659740148
2001	44587.5586158702
2002	44985.8126491232
2003	45870.271347646
2004	47210.4780300517
2005	48390.4398838042
2006	49199.7244432474
2007	49835.8847466621
2008	49472.4882807389
2009	47732.3097359061
2010	48688.0279107995
2011	49242.0415108205
2012	49909.9913997588
2013	50470.6928551747
2014	51335.3397676501
2015	52263.4996548045
2016	52630.8625671492
2017	53517.2180372041