Year current US$ 1960 108.58010930917234 1961 113.43697549225446 1962 117.14496923479015 1963 119.44301243910564 1964 123.69435506072038 1965 132.74507954534542 1966 138.38228394162024 1967 142.1389692690871 1968 145.6147919527612 1969 155.22465670064796 1970 150.0323861297461 1971 153.9130301694302 1972 155.31964624474833 1973 182.7014035039392 1974 222.90058550517583 1975 263.9762932668503 1976 246.00165242601014 1977 261.6982407336555 1978 296.6688616830041 1979 323.90829688001736 1980 361.16527811930234 1981 369.3404811143663 1982 361.99361904405873 1983 358.364715494221 1984 364.74168920510186 1985 379.158577764723 1986 331.4123839497629 1987 336.3525384178545 1988 349.66519507500607 1989 356.0593021165522 1990 400.75647375576835 1991 423.7207887684084 1992 346.6572602983461 1993 350.34035619312385 1994 332.4054346891685 1995 340.201587819965 1996 359.4279211019084 1997 365.9910102285828 1998 369.7239977527166 1999 369.5776723617409 2000 392.53489616091275 2001 375.4988300686469 2002 388.7854561864211 2003 427.406736048871 2004 472.5238709285711 2005 525.2820507916113 2006 590.471091164945 2007 684.5924212647066 2008 810.147187297855 2009 805.47922565553 2010 894.0282250329625 2011 977.2931743411152 2012 957.8330296285044 2013 1021.3386164363509 2014 1068.896689405656 2015 1042.1553545765687 2016 1077.4759697027032 2017 1135.9391535687041 2018 1181.4139948096324 2019 1214.9263173816003 2020 1201.234018715809 2021 1274.0778291501804 2022 1339.9419538242746 2023 1417.3486587331943