Year 2004-2006 = 100 1961 25.12 1962 24.57 1963 24.9 1964 25.74 1965 25.55 1966 28.03 1967 32.19 1968 33.1 1969 35.75 1970 36.38 1971 37.87 1972 36.7 1973 42 1974 42.48 1975 43.45 1976 46.72 1977 48.5 1978 48.56 1979 48.68 1980 48.78 1981 47.75 1982 46.71 1983 52.51 1984 57.42 1985 48.15 1986 51.51 1987 55.56 1988 53.35 1989 51.54 1990 80.46 1991 77.11 1992 79.76 1993 73.29 1994 73.24 1995 74.64 1996 79.15 1997 80.52 1998 84.17 1999 90.22 2000 91.18 2001 92.71 2002 94.97 2003 100.38 2004 98.92 2005 101.86 2006 99.22 2007 99.3 2008 101.05 2009 100.94 2010 98.47 2011 98.3 2012 101.96 2013 102.71 2014 101.03 2015 101.74 2016 102.79