Year	constant 2010 US$
1960	4362.13600677405
1961	4958.07371793728
1962	5270.22830082662
1963	5523.33152501935
1964	5694.40954771958
1965	6071.02461697624
1966	6230.79420388599
1967	6359.02793802056
1968	6383.67921754076
1969	6757.76617311874
1970	7198.88396475222
1971	7788.0762213189
1972	8513.79132974804
1973	9211.79803189271
1974	12609.953256177
1975	14732.8590145712
1976	19562.586746466
1977	16725.6000938781
1978	12412.8097592958
1979	12177.6532549765
1980	12186.9569423106
1981	12492.0138601941
1982	11800.2933377796
1983	12142.1145123379
1984	12712.4918105143
1985	12085.7736396323
1986	11665.1183284979
1987	9401.57289809644
1988	10318.734550046
1989	10894.4293125838
1990	11148.9716841142
1991	11511.6507731488
1992	10857.7588259053
1993	10988.1678684681
1994	11099.9575408245
1995	11354.6580183226
1996	11470.1560293892
1997	11826.7455774026
1998	11937.6366247739
1999	10608.4435536807
2000	10160.3444537978
2001	10132.7658335207
2002	9869.71775909755
2003	9849.63882039948
2004	9669.6384746557
2005	9665.99680304366
2006	9134.55968850484
2007	9404.40830039937
2008	8818.02391227421
2009	8545.94605301081
2010	8840.73066379785
2011	9127.70996825147
2012	9249.85820953921
2013	9409.04068232735
2014	9467.36378585918
2015	9512.00905238808
2016	9419.85671206659
2017	9203.99356108556
2018	9077.01155449463