Year	current US$
1960	71.3602242458753
1961	72.08878213277688
1962	73.94200799474129
1963	78.94826929449927
1964	85.96472462771423
1965	50.990420220222404
1966	51.808640075985814
1967	54.450305087579316
1968	54.64746567903503
1969	55.54377511862979
1970	69.39510892414317
1971	70.58552337455318
1972	68.95532973994752
1973	85.21464378673804
1974	94.33346267559739
1975	112.28610730588734
1976	117.05187846037522
1977	139.41326373279296
1978	151.06799150260943
1979	189.1259411724376
1980	213.25343536678358
1981	215.78760277902046
1982	220.15700992449646
1983	229.1177255386465
1984	203.85982997367907
1985	232.41182455329022
1986	238.35691669958123
1987	219.37130065557548
1988	205.31791926307955
1989	207.2919501065078
1990	206.44492826738258
1991	208.6567233784316
1992	188.58116684758104
1993	168.96407559491055
1994	165.5859346746036
1995	168.62716770279326
1996	146.53618254174444
1997	164.2334456669357
1998	148.08954262848746
1999	130.753023919327
2000	138.00461722536627
2001	135.60647578464634
2002	124.13930155819287
2003	114.36700716215994
2004	128.53842251945645
2005	151.1885410059036
2006	166.27624522876096
2007	170.70687650242797
2008	194.7106346444437
2009	204.5447555952195
2010	222.66058320837644
2011	236.4513474862346
2012	238.2059452587806
2013	241.54766570985728
2014	257.81855741013135
2015	289.35962720612906
2016	242.5395272929783
2017	244.14542219677048
2018	232.06061662771094
2019	216.97297090061616
2020	216.8274174811143
2021	221.15780342985366
2022	259.0250313630879
2023	199.58076018149245