Year	current US$
1960	104.12342548910212
1961	102.92112659951842
1962	87.44777620403438
1963	84.45678553891287
1964	73.38891953811881
1965	63.05590891803756
1966	65.5883064615784
1967	42.26976802983376
1968	33.46153024652821
1969	33.09402083109222
1970	51.419891324148665
1971	39.30160210630794
1972	64.10771604636064
1973	116.20367660480963
1974	170.39983575459948
1975	260.6120060657069
1976	294.683013831404
1977	219.90427930735638
1978	228.1857338482928
1979	683.459648835309
1980	710.9602923009306
1981	541.4723876064604
1982	375.67285543368814
1983	339.6592483692069
1984	266.68298593677
1985	220.76022133088375
1986	219.77922171309734
1987	214.44630540757205
1988	150.66624160627705
1989	102.22733424285055
1990	273.41938964448553
1991	256.19555358532057
1992	109.97735103551565
1993	76.26554865925367
1994	87.37622559727556
1995	121.2351613678574
1996	110.46122282674374
1997	100.4654970988059
1998	85.44086932117517
1999	87.90543141367382
2000	109.60461263314534
2001	87.21343431996026
2002	106.6660141011608
2003	244.8464276632864
2004	109.28846273735992
2005	125.00585108514592
2006	94.40630002828041
2007	97.94766498929305
2008	111.0574565324578
2009	107.96118059510938
2010	137.7455578770838
2011	137.00460136117653
2012	160.4994437636988
2013	181.98360039043047
2014	311.5213458713776
2015	225.51027736464064
2016	273.76459063946913
2017	291.68367896502144
2018	241.50408228559834
2019	251.4188052544645
2020	284.97936409370317
2021	309.2091803185882
2022	175.94923264078113