Year	current US$
1960	798.642235573087
1961	880.3474638077329
1962	964.8015971665245
1963	1050.985910361917
1964	1155.5829867902153
1965	1253.7988676418693
1966	1346.5214989963604
1967	1422.6733440999842
1968	1515.9386315370689
1969	1679.9799530008931
1970	1888.6275595392804
1971	2123.199392753807
1972	2544.141103133496
1973	3270.9134810997375
1974	3680.6986867271526
1975	4261.3621559933035
1976	4440.661238642282
1977	5004.794407622868
1978	6067.328650246826
1979	7299.101552306101
1980	8129.462775972447
1981	7066.951757597914
1982	6795.426605408596
1983	6589.860732338959
1984	6335.172465668375
1985	6499.687061099968
1986	9050.256754661053
1987	11154.016445006597
1988	12205.890090238117
1989	12426.20874176817
1990	15488.302460742778
1991	15966.133364723844
1992	17476.75662440593
1993	15909.64628751298
1994	16820.376350131708
1995	19464.699643204967
1996	19750.419892441165
1997	18088.7708821154
1998	18615.896204823643
1999	18482.540126155774
2000	16947.75488016333
2001	17198.040448050204
2002	18759.699727203846
2003	22967.93525875527
2004	26307.19787184884
2005	27341.731654180556
2006	29089.710258334733
2007	33587.35664402623
2008	37044.05449503469
2009	33480.803984194135
2010	32965.77499215806
2011	35767.33906705309
2012	33169.40568305009
2013	34564.94044792712
2014	35282.51646308273
2015	30487.65236927324
2016	31174.753508393576
2017	33091.38902519061
2018	35752.58734219878
2019	35080.914797176345
2020	34357.119988191196
2021	38720.8751728955
2022	37466.69635115349
2023	40823.876263476246