Year 2004-2006 = 100 1961 27.53 1962 29.72 1963 29.31 1964 30.86 1965 31.42 1966 31.35 1967 32.02 1968 33.31 1969 33.96 1970 35.54 1971 37.68 1972 38.27 1973 38.59 1974 41.39 1975 45.17 1976 47.96 1977 47.9 1978 50.63 1979 52.54 1980 53.02 1981 54.52 1982 53.78 1983 52.5 1984 54.37 1985 55.01 1986 56.81 1987 58.46 1988 62.34 1989 67.36 1990 70.21 1991 70.98 1992 70.32 1993 72.06 1994 74.3 1995 78.58 1996 79.29 1997 82 1998 81.6 1999 86.11 2000 87.38 2001 88.54 2002 90.43 2003 93.18 2004 97.51 2005 98.79 2006 103.7 2007 106.74 2008 110.25 2009 106.49 2010 103.38 2011 106.33 2012 111.81 2013 116.55 2014 116.98 2015 120.3 2016 116.67