Year	constant 2015 US$
1965	417.6142629011556
1966	486.49846910055754
1967	528.048479186983
1968	548.1192777923642
1969	569.5066236627589
1970	565.9843347284121
1971	316.84606292012506
1972	334.71324141343354
1973	363.18015734662237
1974	393.5053070768211
1975	291.9849742328531
1976	435.60131621350405
1977	423.4456358301511
1978	375.24122121310563
1979	402.9100382692778
1980	420.85536533097905
1981	448.60707121052053
1982	467.57225926228904
1983	423.1592198731923
1984	470.65181135501376
1985	541.6340214832355
1986	482.083830141678
1987	446.373484119494
1988	515.3007412581796
1989	510.2000113820595
1990	476.494259727419
1991	496.37946514585576
1992	507.5989164771971
1993	393.2992207638837
1994	418.2879774502491
1995	440.0350042702949
1996	541.7843694262287
1997	566.7470219281349
1998	574.627000401429
1999	567.5801837094424
2000	538.8603064936766
2001	526.6716391968573
2002	536.3626390751999
2003	551.2553981818996
2004	528.6743267850743
2005	493.4936978369891
2006	501.5172278282453
2007	519.4546991100458
2008	523.3010653320476
2009	543.8854029394457
2010	545.8561819241836
2011	564.6255832119889
2012	564.9588016816709
2013	573.2436142645815
2014	585.7156764689252
2015	601.0867145556375
2016	607.4602399981908
2017	609.8474661780441
2018	622.8210195673328
2019	642.0143580698121
2020	588.0734718754998
2021	643.101908152499
2022	657.8335280652466
2023	682.5638281366548