Year	current US$
1960	0.00503609357086367
1961	0.004912382631623651
1963	0.004696551029663689
1965	37.152738240858206
1966	37.68011144134053
1967	42.30518117313156
1968	46.401466231041994
1969	48.907369051597705
1970	59.32362537895205
1971	56.705427755531986
1972	74.29425315580762
1973	72.96762290038973
1974	96.16168961911461
1975	108.95836514732639
1976	82.76382742094593
1977	86.15725511390568
1978	97.68741482069072
1979	92.54407596484863
1980	102.47398652085391
1981	100.80235204649152
1982	94.61360992596464
1983	98.0301601371935
1984	93.54075205891422
1985	73.3007152885741
1986	72.78345656328706
1987	86.72229589967623
1988	98.96862866280904
1989	86.62866210470519
1990	95.78336200288929
1991	86.28675182935284
1992	104.7322395242073
1993	65.91732818910809
1994	67.10928469027745
1995	77.6182696932027
1996	79.23700817103237
1997	68.2802494309538
1998	69.82135186692707
1999	39.91627817067822
2000	49.92105744957616
2001	36.141158989381566
2002	34.5518352358648
2003	36.585245122770225
2004	41.656297306710805
2005	41.2982814180114
2006	40.79921720501976
2007	48.01716766929633
2008	43.16202217458071
2009	53.66162758900297
2010	67.81772205322994
2011	78.96870066697734
2012	83.50666688235722
2013	79.73196003668441
2014	68.74993553927145
2015	68.11542991979175
2016	59.733669187521215
2017	58.43575707923831
2018	84.7176272574285
2019	68.03258733699279
2020	108.28810289726083
2021	119.14443439817852
2022	65.18730348740853