Year	constant 2010 US$
1970	2804.48829813205
1971	2831.86898701059
1972	2820.18351722386
1973	2946.96854482627
1974	3024.88113687663
1975	3035.98075121728
1976	2951.94366536296
1977	2901.30069515986
1978	2662.07591851124
1979	2651.86142701941
1980	2769.44704649664
1981	2909.45448540176
1982	2869.15366339519
1983	2439.34687432214
1984	2459.71912453222
1985	2516.40594719012
1986	2671.81646128477
1987	2946.08050468501
1988	2270.06025843221
1989	2053.42756935595
1990	2048.00768784215
1991	2158.30080753692
1992	2118.52794036579
1993	2161.41703129258
1994	2427.10223058724
1995	2569.23276012791
1996	2581.44895851935
1997	2694.75377422489
1998	2609.17312228464
1999	2515.25493397327
2000	2493.80465302776
2001	2478.64546069014
2002	2581.867519556
2003	2644.31352884649
2004	2716.36642695719
2005	2829.3774321488
2006	2975.38784974726
2007	3283.83997103724
2008	3568.42161095971
2009	3656.92942457402
2010	4076.02939436615
2011	4368.47898506549
2012	4657.93391318703
2013	4903.99349541822
2014	4974.97069396402
2015	5009.09720599127
2016	4999.36113367264
2017	5059.09245660866