Year	constant 2015 US$
1965	259.07368298156507
1966	257.6805461392301
1967	275.83010003161786
1968	279.6061340625126
1969	280.4746346015964
1970	277.1168308276199
1971	275.96496979232546
1972	277.2282418881832
1973	274.23644763327945
1974	290.6402496170063
1975	290.245467143258
1976	309.50049063489126
1977	300.58871530752606
1978	310.5326102094139
1979	314.56199511543986
1980	309.7400624327411
1981	313.0738762406726
1982	333.6286289474041
1983	325.3099270811554
1984	311.4417584980701
1985	328.3097415807479
1986	344.9062507187049
1987	334.4447197118701
1988	344.0074515897981
1989	342.45538350194846
1990	332.34034035013303
1991	353.24289730758755
1992	345.22330937659524
1993	347.59037017095955
1994	342.9894027900518
1995	354.5279208425646
1996	386.21760158358677
1997	398.8434723699737
1998	416.33697729368254
1999	435.127369265187
2000	429.3415092578267
2001	442.9787403168079
2002	445.8522342728251
2003	465.0462397211733
2004	472.2696595839991
2005	496.326373683971
2006	514.8157338649289
2007	519.9229758519454
2008	533.6566724326015
2009	529.2646019267536
2010	547.515118755151
2011	560.0304288274833
2012	587.2296555687104
2013	602.1957601033884
2014	599.6178287143189
2015	603.3291057550846
2016	620.8830011409144
2017	645.4900534784849
2018	673.4816647766115
2019	683.8909369992627
2020	685.5597279158567
2021	705.1657049712771