Year	current US$
1960	128.5305909668812
1961	134.84557546473934
1962	143.2839816598522
1963	153.37205087001232
1964	148.0353599495883
1965	166.12298602718667
1966	168.3153769389566
1967	154.99371426486013
1968	145.13827581941624
1969	137.7655623228558
1970	139.17714367643075
1971	144.58283760627805
1972	150.77785494535527
1973	187.05547539081493
1974	197.46396829396576
1975	196.40256998183037
1976	193.9486120815414
1977	228.79114126322148
1978	305.38010349256894
1979	352.30072962902113
1980	406.35878749612306
1981	340.999697214598
1982	307.35457696413744
1983	266.4703044924536
1984	209.53182756449422
1985	200.42546117483298
1986	257.0199032202106
1987	292.40875999876897
1988	289.6701214293865
1989	268.54940526472615
1990	419.6038954076186
1991	380.53663788777
1992	380.1490696333649
1993	332.0622156422268
1994	204.1495871429221
1995	234.6196047535817
1996	237.0149627575422
1997	218.24614472379383
1998	243.51754955289562
1999	225.95350801332856
2000	192.87772578935858
2001	203.52648886841953
2002	223.35239286166748
2003	263.0912318156821
2004	281.3253602120445
2005	316.3656476202852
2006	331.1037679739789
2007	384.71834548399556
2008	472.1784273555855
2009	458.42189023532126
2010	471.6126879689797
2011	507.60249530245267
2012	525.0472849140106
2013	548.1578488421651
2014	560.754475169279
2015	481.1113011050023
2016	497.03612083172555
2017	514.5433980163472
2018	568.5996597467254
2019	549.8161277776604
2020	564.8416623201317
2021	590.6294947558139
2022	588.8990482667294
2023	618.2872290431304