Year	current US$
1960	1810.5974427860906
1961	1877.6002241020035
1962	1854.6418904868842
1963	1967.1089905365252
1964	2131.3802998280476
1965	2281.0119561104902
1966	2343.8197896536863
1967	2580.110591646409
1968	2724.1306715174983
1969	2991.3859471041783
1970	3304.837819891026
1971	3495.141627476506
1972	3949.3729870583056
1973	4770.618657887656
1974	6482.831081825256
1975	7003.744179719527
1976	7486.59278090393
1977	7775.496820971682
1978	8252.655904006844
1979	9294.359247260136
1980	10208.652009279489
1981	11853.513817839168
1982	12778.92791664257
1983	11515.622918721207
1984	12421.473866558466
1985	11441.193301972191
1986	11391.655047324371
1987	11650.801187948933
1988	14284.520688537308
1989	17834.21055932254
1990	18248.940709242128
1991	18859.407956138286
1992	18623.79173639894
1993	17699.557739278378
1994	18129.402186323914
1995	20448.121968587362
1996	22021.783906522804
1997	23646.62304573268
1998	21479.114202009194
1999	20712.669780556378
2000	21870.41596695936
2001	19695.72973791439
2002	20301.843171325632
2003	23718.133850186834
2004	30836.730682468526
2005	34479.76792983877
2006	36595.70715484226
2007	41051.612065228765
2008	49701.281784333456
2009	42816.56740028294
2010	52147.02419428431
2011	62609.66071610435
2012	68078.04422831676
2013	68198.4193446869
2014	62558.2438786332
2015	56758.869202782145
2016	49918.79393272537
2017	53954.55349461402
2018	57273.52047500792
2019	55049.57191971905
2020	51868.24755678234
2021	60697.24543585788
2022	65077.67666882105
2023	64711.76560305647