Year	current US$
1961	204.45621068793747
1962	205.53020762879177
1963	236.96172055557838
1964	233.71367818479374
1965	222.343486242876
1966	228.83244411097297
1967	232.92236939544722
1968	253.84867400640428
1969	262.43382454225554
1970	285.14422369164333
1971	325.19283378872404
1972	420.58156060899927
1973	499.8148463620906
1974	631.7112589774359
1975	750.3744253467122
1976	760.2349852665728
1977	838.5881705549659
1978	954.2091769862905
1979	1120.4254835363768
1980	1329.2683168598498
1981	1249.7602025614124
1982	1176.2290053760967
1983	1177.586348825445
1984	1133.9968618379378
1985	1124.949512741603
1986	1174.8821352744499
1987	1231.4381529574393
1988	1251.2716609279166
1989	1223.5183177457443
1990	1456.2244891771245
1991	1516.2942715938277
1992	1760.4814133668656
1993	1627.275714543352
1994	1709.8253547758409
1995	1940.034292645422
1996	2076.990398944442
1997	2170.5715864791255
1998	2253.0288455985124
1999	2343.997254510702
2000	2170.5086707811856
2001	2207.659920629519
2002	2292.4837052868565
2003	2693.196614398571
2004	3029.8487685062805
2005	3106.5766300003424
2006	3279.1028199195134
2007	3678.062479402422
2008	4200.172643877751
2009	4029.461206311028
2010	4241.011909519278
2011	4361.949122184316
2012	4233.916254049404
2013	4308.338304944635
2014	4398.638695408537
2015	3960.9248491366316
2016	3796.1095999439012
2017	3569.718838836728
2018	3577.17534204669
2019	3477.8361809165276
2020	3493.8977376570606
2021	3817.3771737512316
2022	3607.9102377307763
2023	3895.3866387407948