Year	constant 2015 US$
1960	1174.9373187595627
1961	1206.9011309957368
1962	1220.2310282031854
1963	1320.2108859280088
1964	1388.7215109588076
1965	1461.090780289559
1966	1607.8199460134451
1967	1734.4074308760496
1968	1917.1907539120214
1969	2138.7346261622392
1970	2261.170308911674
1971	2415.981619990195
1972	2522.010471664484
1973	2835.1832300892247
1974	2966.912073416859
1975	3047.205229939042
1976	3513.538263985889
1977	3938.486117342359
1978	4360.5594306196035
1979	4626.240277101478
1980	4298.957046336928
1981	4467.061959974487
1982	4829.050719747335
1983	5424.801104176437
1984	5922.3103297037915
1985	6264.126118559435
1986	7067.75366966519
1987	8043.897823464995
1988	9031.97421163421
1989	9726.426872327133
1990	10543.072943089577
1991	11579.008389860435
1992	12161.709836545271
1993	12907.370193603332
1994	13977.278363634958
1995	15050.194809401764
1996	15899.158931985336
1997	16388.468919450745
1998	15022.034449181963
1999	16513.569822802965
2000	17435.897124381736
2001	17988.4159459879
2002	19428.429516188993
2003	19844.13421043275
2004	20615.23696435613
2005	21070.32378174259
2006	21795.13553859384
2007	22918.598267016725
2008	22831.775923566598
2009	23277.408896132605
2010	24831.14550033844
2011	25042.04018971466
2012	25639.664161634788
2013	26504.55021239901
2014	27258.24053857596
2015	28827.328358398612
2016	29980.666856993397
2017	30881.112360085088
2018	31233.211897243076
2019	31233.95401240661
2020	31208.547449769296
2021	32339.9079702832
2022	32177.294030674602
2023	32740.438657741313