Year	constant 2015 US$
1960	337.786064855958
1961	341.8653244902471
1962	343.4831271637085
1963	355.6327794741521
1964	372.83453483505417
1965	354.4706160470176
1966	346.38791527247355
1967	364.8383339905826
1968	368.8406272058004
1969	383.9627517766784
1970	394.6781498281885
1971	392.6726189540353
1972	382.24133582662466
1973	386.0291063769349
1974	382.05131890315096
1975	407.83610407561605
1976	405.4168627981749
1977	425.27130143721564
1978	439.42994540290937
1979	407.5377475496903
1980	425.0732733291186
1981	439.7569888959298
1982	443.33047958991057
1983	464.366510894667
1984	470.09984332593655
1985	483.37047877142726
1986	494.6168682667431
1987	504.0991079276384
1988	537.2072152211058
1989	555.2604038124457
1990	570.8719736183444
1991	568.3804125030647
1992	589.0764612949337
1993	600.4200773481481
1994	623.2455155094318
1995	653.478742833159
1996	685.5980337782081
1997	695.8606725138317
1998	719.3221137242451
1999	762.6119212133622
2000	776.8718647971422
2001	797.9649441279727
2002	811.195087546994
2003	855.9081194228505
2004	907.6165327685544
2005	961.8106172849684
2006	1019.0095542670961
2007	1078.10109610552
2008	1092.682241133473
2009	1153.3027384045597
2010	1217.1257520193099
2011	1260.6801841978383
2012	1303.469885055842
2013	1363.347539444545
2014	1440.553985521861
2015	1529.2456995539949
2016	1629.5395698178718
2017	1716.3762143212268
2018	1803.0849764927518
2019	1848.3604364362354
2020	1725.3781815835155
2021	1867.305553339746
2022	1963.0203261932757
2023	2067.4021815259093