Year	constant 2010 US$
1971	1675.04278408605
1972	1852.50126157966
1973	1964.62818477304
1974	2023.78325585294
1975	2182.08847259186
1976	2073.34473826892
1977	2112.60249491345
1978	2083.18260462088
1979	2075.71314378769
1980	2143.44235294528
1981	2164.71788223894
1982	2166.0018034191
1983	2140.8191024191
1984	1981.39870544055
1985	2160.40117693615
1986	2357.09324922169
1987	2423.25501550562
1988	2552.84356106943
1989	2582.29653582722
1990	2357.72822899808
1991	3108.30347311207
1992	2703.08092295305
1993	2791.08409425866
1994	2865.41519635072
1995	2981.38545396031
1996	3155.84409890233
1997	3419.13678363049
1998	3584.30617085105
1999	3623.35432720946
2000	3692.96004455041
2001	3747.17796978657
2002	3804.92482552032
2003	3579.23872295075
2004	3644.0258929156
2005	4012.90811471702
2006	4342.54831423631
2007	4523.36116613594
2008	4666.08262357855
2009	4868.64524607447
2010	5124.04886063016
2011	5147.18463155565
2012	5231.97165666345
2013	5290.49355816012
2014	5575.54650283444
2015	6079.56453288847
2016	6408.58364203038
2017	6586.99763530255