Year 2004-2006 = 100 1961 27.8667046666758 1962 28.8220903837657 1963 29.4429818773866 1964 28.9126748375183 1965 29.5899319574256 1966 30.9888660401089 1967 31.7947136218793 1968 32.8580779350012 1969 34.2826132772235 1970 34.0432554659055 1971 33.9674390656922 1972 35.3529434010817 1973 35.9474984098483 1974 37.1161988272305 1975 38.716293988996 1976 40.8549478968728 1977 42.182402333573 1978 43.8838236786301 1979 44.8170251290136 1980 45.5091923242911 1981 47.3287251348118 1982 48.7276211454187 1983 50.4544063337586 1984 52.3186617200081 1985 54.1426892474005 1986 56.6665434087339 1987 56.677777972077 1988 58.026521473481 1989 59.4794637202391 1990 62.8652923629285 1991 64.738765259711 1992 66.7735855359892 1993 69.3047546105662 1994 71.5263829964776 1995 73.6429300876354 1996 74.9650485334651 1997 77.6566591456067 1998 79.1161758997449 1999 82.1952949055031 2000 85.1510785351893 2001 86.5178229528866 2002 88.7624870874227 2003 91.9911304285815 2004 95.6798936285745 2005 99.828663739424 2006 105.041630065549 2007 110.07115205217 2008 112.279382569574 2009 115.569790748846 2010 119.057041145554 2011 123.342404425668 2012 126.849368757012 2013 130.322050681392 2014 133.133291096723