Year	constant 2010 US$
1970	1367.86942792562
1971	1459.07043422676
1972	1502.82136784694
1973	1528.634506257
1974	1520.62271484137
1975	1641.99042625881
1976	1710.55392016369
1977	1842.67205730114
1978	1950.061410551
1979	1960.33578439065
1980	1847.08031236224
1981	2195.80089936364
1982	2395.64959110289
1983	2521.26595958387
1984	2717.29762350512
1985	2662.6248177557
1986	2665.72015103771
1987	2690.3635055597
1988	2722.60478532335
1989	2737.56474804023
1990	2534.88911862638
1991	2259.02044518069
1992	1844.98034471937
1993	1628.04097340903
1994	1712.45583012965
1995	1729.69961717974
1996	1789.08780887254
1997	1822.05856828327
1998	1848.04972742696
1999	1934.47577470247
2000	1967.50825622907
2001	2035.71202416223
2002	2072.61183377588
2003	2195.33055261538
2004	2224.9386799189
2005	2231.12944104539
2006	2648.66235797465
2007	2691.25995881318
2008	2647.07432121939
2009	2673.25130922522
2010	2883.43883998977
2011	2921.0036936955
2012	3010.58991865909
2013	3158.75539404601
2014	3296.50308995257
2015	3533.31605842271
2016	3676.29144450717
2017	3724.26723025463