Year	current US$
1960	244.61102914742412
1961	235.52966575939772
1962	240.4417570737275
1963	292.57581846664885
1964	302.6761683115712
1965	325.19331934904176
1966	336.5564422141527
1967	332.80067378747447
1968	339.09653899578433
1969	364.2086196846367
1970	374.9228805152672
1971	402.21492817177705
1972	466.90660450235754
1973	692.681498588649
1974	837.7633559772596
1975	800.3824427385512
1976	927.8051592281251
1977	1075.3392551221898
1978	1304.067339077025
1979	1647.630822374759
1980	1852.9636497850995
1981	1843.3493690844318
1982	1925.4678397214561
1983	2123.2585965590106
1984	2311.1703765964567
1985	2065.0883350565637
1986	1782.5422495492912
1987	2007.172919550703
1988	2134.519145267814
1989	2282.4699706059178
1990	2513.2413954774393
1991	2727.5285852808283
1992	3193.635381037796
1993	3511.5326289218447
1994	3802.1076207945375
1995	4405.116763956343
1996	4874.819725200819
1997	4706.314912598817
1998	3308.835652999352
1999	3538.3629928858745
2000	4087.562593493844
2001	3941.122666213687
2002	4177.10494176499
2003	4454.526763836562
2004	4924.338111265821
2005	5536.837483069492
2006	6137.150539963126
2007	7144.0002399818295
2008	8343.303381744601
2009	7167.877194233734
2010	8880.145804541093
2011	10209.371944502675
2012	10601.51045589664
2013	10727.669021554222
2014	11045.580120759947
2015	9699.600463427363
2016	9555.669593365588
2017	9979.704472823705
2018	11073.97897046911
2019	11132.102742941752
2020	10164.344431072957
2021	11134.622952818867
2022	11993.187613299353
2023	11648.674157414353