Year	constant 2010 US$
1970	2482.51768595584
1971	2514.8620610629
1972	2455.64099505441
1973	2510.29388051332
1974	2805.21341429094
1975	3099.48259793555
1976	3215.36970098198
1977	3358.96885011306
1978	3331.20373063876
1979	3227.75618530476
1980	3297.68238813126
1981	3431.06325810576
1982	3318.72412825574
1983	2960.2194655029
1984	2945.72463033157
1985	3049.65666303167
1986	2955.9014819848
1987	2817.7704064064
1988	2578.01610299865
1989	2495.28210914355
1990	2671.47882738394
1991	2957.86644850562
1992	3084.27150501299
1993	2866.50351481507
1994	2932.42688336586
1995	2898.60229309626
1996	2863.55874153748
1997	3014.93709025702
1998	3010.9880786657
1999	2630.93345409595
2000	2542.00709497386
2001	2722.90647133485
2002	2909.70017237018
2003	2917.55060703659
2004	2935.74030453403
2005	3016.72845932729
2006	3127.4088409595
2007	3273.87824132732
2008	3556.39233911118
2009	3612.71402773571
2010	3667.0114722024
2011	3917.85849583571
2012	4093.20618542314
2013	4290.81118841555
2014	4368.23802286484
2015	4316.71474770087
2016	4192.86474875643
2017	4206.49522974059