Year	current US$
1960	177.0877365397476
1961	184.25289233305665
1962	190.92215190458134
1963	207.72932373588353
1964	227.85345695614814
1965	263.77887171758005
1966	266.5984221539228
1967	212.85527066078976
1968	197.9848625525729
1969	227.32302059331855
1970	249.91335175523307
1971	266.4636046304954
1972	225.98251126884472
1973	313.17233094600664
1974	291.80522893416736
1975	275.2348891950912
1976	263.1318544577989
1977	294.62193431400937
1978	328.08409259607424
1979	349.1091855430029
1980	374.6427352427109
1981	345.73451976139415
1982	320.6994115649568
1983	312.4795284547832
1984	330.69395858839715
1985	329.95095995998923
1986	410.521613204969
1987	354.61563840799766
1988	354.27204617751397
1989	348.9039649084301
1990	381.24641910380154
1991	416.77642909160664
1992	395.0426354576956
1993	358.63101159296076
1994	319.6074402591834
1995	370.6880850035866
1996	388.53328032082874
1997	377.2404260254438
1998	399.79620106389467
1999	402.47140318006933
2000	253.38029317576084
2001	263.1701413849427
2002	297.0469703506107
2003	357.84798264330874
2004	405.4249017647192
2005	477.601092763442
2006	904.1695278098989
2007	1047.1994278165066
2008	1178.9558773292601
2009	1044.0049889267214
2010	1258.9641968904803
2011	1501.059171298561
2012	1536.6196349985912
2013	2282.4075011357913
2014	1942.9218417985228
2015	1711.2713256145335
2016	1900.3976952146493
2017	1998.7227984036347
2018	2180.029712514629
2019	2167.9252759779424
2020	2176.5762180423885
2021	2422.0859128502107
2022	2218.414757909927
2023	2238.1580207721286