Year	constant 2010 US$
1960	424.535341910014
1961	425.584699304011
1962	414.389721651666
1963	442.038623013653
1964	473.453926227201
1965	498.667527793479
1966	539.272905283173
1967	541.573347900669
1968	548.992717892865
1969	538.889272387679
1970	535.621260583223
1971	529.021030222287
1972	537.623003490319
1973	545.704795904995
1974	536.087321282439
1975	512.936999035764
1976	499.834808732055
1977	546.445023091541
1978	546.886994968571
1979	560.39656953874
1980	575.103361318893
1981	610.627764060283
1982	524.617007611534
1983	501.48498963255
1984	527.019489416797
1985	569.493923039725
1986	544.320342610778
1987	517.493052797639
1988	559.70030471702
1989	503.032796588296
1990	460.5831517992
1991	487.528938860822
1992	498.297742226348
1993	506.609766114194
1994	463.536606620497
1995	467.480828332995
1996	478.967194872041
1997	488.003561086153
1998	499.597026269782
1999	510.859298817426
2000	533.02208194948
2001	533.21699797592
2002	546.688540747998
2003	541.420748904187
2004	538.783941809999
2005	545.740318199611
2006	549.961689581838
2007	555.095624959134
2008	567.54775457707
2009	562.145535435719
2010	556.408926155354
2011	553.72360681372
2012	552.179472733887
2013	553.89105846425
2014	567.932435778915
2015	556.186587378407
2016	561.020948077737
2017	564.382734795246
2018	565.168788029007