Year	current US$
1960	152.45933433409266
1961	165.90376361457965
1962	181.312337485932
1963	188.24489769233088
1964	195.30390003501327
1965	206.9788305302059
1966	212.15775773587785
1967	219.0753464052826
1968	224.8810622114792
1969	236.2058741728252
1970	246.8508469661754
1971	269.7368424867308
1972	304.99196613283993
1973	385.3929861223254
1974	503.5627283541056
1975	556.7615863033667
1976	610.5605060045214
1977	733.4654067439825
1978	875.353372814367
1979	1139.148059797589
1980	1444.6945224765493
1981	1778.0538207156162
1982	1666.650807584852
1983	1696.913065557375
1984	1309.6580134396095
1985	928.426274250838
1986	1024.1931489482606
1987	1062.0464352716358
1988	1106.9718474599388
1989	1204.0965376257407
1990	1431.839200386256
1991	1675.7136434160955
1992	1673.448371567338
1993	1652.8043214394002
1994	1750.9354779178313
1995	1968.3524865941715
1996	2077.4848286906004
1997	2068.208378129857
1998	1880.8931650200134
1999	1758.2601928875729
2000	1728.3407434100552
2001	1630.1908460826978
2002	1361.249280592867
2003	1436.7649043329382
2004	1776.9322581686572
2005	1960.5147655493347
2006	2426.4170977087097
2007	3194.2629816281674
2008	4360.429108952603
2009	3920.1860707101728
2010	4725.7263410158275
2011	5776.281847996703
2012	5617.104917867875
2013	6410.814702787328
2014	6629.416992773412
2015	5861.40189546648
2016	5759.042197892506
2017	6136.058301495199
2018	6242.961454178984
2019	5807.838794079755
2020	5353.348064562786
2021	5959.4417939362675
2022	6187.066029639897
2023	6260.45519099666