Year	current US$
1965	1059.000246933376
1966	1179.05031256938
1967	1181.942541259915
1968	1309.97878748449
1969	1259.3369093653728
1970	1342.9946027595224
1971	1424.4715199957789
1972	1882.2038421157981
1973	2905.4139247048997
1974	6957.188745021035
1975	7317.7723290832355
1976	8621.123728294304
1977	10159.012435161909
1978	11020.680218568225
1979	15409.83099011196
1980	26228.077451954334
1981	22494.862842405393
1982	21254.062308720462
1983	18526.29427472207
1984	17619.331075642345
1985	15863.264675337907
1986	10262.926278121058
1987	11587.491050037166
1988	10949.802932800845
1989	11762.353285054858
1990	13440.669294553827
1991	13717.387493071245
1992	15080.719714742187
1993	14420.58852474897
1994	14000.446054345846
1995	15827.987363521066
1996	16706.46935176441
1997	16593.43253697645
1998	12653.809397730201
1999	14065.699518799247
2000	17971.892287759205
2001	16437.422036959106
2002	16817.23886530051
2003	18521.36612641729
2004	21839.26361911211
2005	25991.214009151063
2006	30767.753833107123
2007	32337.274372207285
2008	37427.54005731022
2009	27497.546869337984
2010	34609.711982932284
2011	46139.10757591823
2012	46844.19733906472
2013	43950.04546199885
2014	41035.77712278916
2015	30681.433969865317
2016	26762.03504366215
2017	28186.98673514232
2018	31240.50178872457
2019	30748.309237122816
2020	27179.352886939847
2021	31448.912748293696
2022	37152.47697497628
2023	33430.9184783787