Year 2004-2006 = 100 1961 24.217068006808 1962 24.1578939991295 1963 24.2270877452961 1964 25.0651092018387 1965 25.9410626909094 1966 26.5071837355641 1967 27.1833538796237 1968 27.7069729874193 1969 28.8707323294833 1970 29.9151560512897 1971 30.7448181627824 1972 31.6256656749942 1973 32.78015538884 1974 33.5508211714104 1975 34.3581645657808 1976 36.0267494966709 1977 37.014675984392 1978 38.3939600884585 1979 39.4751839788999 1980 40.8108857006988 1981 40.8045525699862 1982 42.8258044434972 1983 44.7121927289456 1984 46.9194098550991 1985 49.5446406402645 1986 51.7230793756038 1987 54.4678909934306 1988 56.8518618213569 1989 58.7758180995986 1990 60.8697714763203 1991 63.0386579993381 1992 68.690056581119 1993 71.2322775171859 1994 73.6104382181514 1995 75.8336512908952 1996 76.7837107071152 1997 79.3576241305426 1998 81.6633136109732 1999 84.2259283837206 2000 85.4538482169077 2001 87.9353910859586 2002 90.7656999437591 2003 92.5996844569273 2004 96.1915130004655 2005 99.2849044843456 2006 104.606481354212 2007 108.347786864109 2008 111.980460238446 2009 116.642434891485 2010 119.089192879932 2011 123.620883065198 2012 126.060048867511 2013 130.217500669061 2014 132.481201437459