Year	constant 2010 US$
1960	520.404179984985
1961	529.297338642614
1962	503.599084051538
1963	519.130656001452
1964	544.427762856429
1965	563.14643870332
1966	572.453222994978
1967	567.383628665014
1968	577.305494894222
1969	581.61037421383
1970	581.235118982927
1971	560.180110614056
1972	583.056243099537
1973	591.050532244085
1974	596.657708163309
1975	553.93664820434
1976	545.143576619519
1977	557.93222697945
1978	550.42650351024
1979	571.072511282984
1980	593.619562439568
1981	635.117493477248
1982	631.527135880661
1983	587.287625984981
1984	616.037500535204
1985	643.587476348851
1986	638.749042846944
1987	611.028136374675
1988	613.231180279321
1989	577.539883272228
1990	609.345623847634
1991	614.005294113839
1992	610.55090183852
1993	623.953655204789
1994	615.120445612328
1995	631.171223502581
1996	638.076330738046
1997	654.542811574812
1998	660.631781368267
1999	675.677481564767
2000	694.243748862815
2001	709.469362156737
2002	720.168276979008
2003	722.667195343064
2004	732.335422521139
2005	723.19995937719
2006	730.275166698073
2007	752.215036722347
2008	767.031377787259
2009	763.154547400962
2010	757.695907409377
2011	758.575276385114
2012	773.175729269639
2013	805.956123498516
2014	833.630342519349
2015	827.835457935714
2016	837.216825726833
2017	862.056056916603
2018	896.324367880198