Year	constant 2010 US$
1970	492.267918216487
1971	464.175626208753
1972	484.222127831592
1973	480.640117178883
1974	494.925220042859
1975	527.960953044008
1976	550.873123776099
1977	510.503115894586
1978	577.209062697784
1979	586.755845880163
1980	488.767409553477
1981	568.739441556982
1982	580.488571474278
1983	547.386674215744
1984	582.467482459667
1985	592.205529817989
1986	574.10296943501
1987	577.657415807903
1988	591.089428939319
1989	613.505416866206
1990	636.598619957088
1991	654.134091259165
1992	646.533828009824
1993	645.514137629069
1994	651.85007089814
1995	666.464021116397
1996	729.057499183523
1997	761.584535566939
1998	537.209602841964
1999	532.22533922273
2000	549.819707488698
2001	550.039418981954
2002	532.747858899851
2003	523.730947822119
2004	525.824373105346
2005	535.440957455005
2006	534.822272283187
2007	538.985481805324
2008	542.645951129504
2009	546.947092261669
2010	557.632132626126
2011	587.140383038061
2012	561.986650036213
2013	565.047969925518
2014	555.605048729962
2015	574.491700576592
2016	594.978358692716
2017	614.439429918411
2018	622.079825417697