Year 2004-2006 = 100 1961 31.2371488391999 1962 30.9830345138106 1963 31.9942184767555 1964 32.8015585224038 1965 31.7866509946022 1966 31.6503214524864 1967 33.8519226451579 1968 35.6837994107843 1969 36.8742906711783 1970 38.2691168762221 1971 38.3469770159811 1972 37.2012887989354 1973 40.0255702550793 1974 39.1989403425824 1975 42.9677981407266 1976 42.7805280230475 1977 45.7909092955861 1978 47.1992491087457 1979 45.7760969778391 1980 47.4935547239536 1981 50.3546588825973 1982 50.3743427405098 1983 55.4281518088325 1984 56.4186463003039 1985 57.6970236138454 1986 58.9103460448251 1987 58.8068289271223 1988 63.4037240982569 1989 67.1711807381429 1990 68.563914038389 1991 69.8797508718193 1992 72.3101628819577 1993 75.208396695031 1994 77.0690501384376 1995 79.730495319902 1996 82.4461447499659 1997 84.7048642278398 1998 86.6614343941334 1999 90.878053957154 2000 90.8736207803177 2001 92.7633427080645 2002 87.9021528346813 2003 95.5526613222762 2004 94.6975839766089 2005 100.378255976919 2006 104.834450981689 2007 113.061131686921 2008 116.262351437373 2009 114.81828517406 2010 122.031434505664 2011 129.013946156215 2012 131.848654772904 2013 136.864405723254 2014 140.390418100291