Year 2014-2016 = 100 1961 23.28 1962 24.63 1963 24.58 1964 26.05 1965 25.9 1966 28.46 1967 29.2 1968 26.87 1969 29.48 1970 31.97 1971 32.26 1972 30.59 1973 30.61 1974 31.54 1975 30.85 1976 30.27 1977 30.79 1978 29.69 1979 30.39 1980 27.91 1981 30.83 1982 31.95 1983 27.67 1984 32.56 1985 32.92 1986 33.92 1987 35.9 1988 37.91 1989 38.77 1990 32.46 1991 33.48 1992 29.54 1993 33.77 1994 40.13 1995 43.52 1996 48.07 1997 50.86 1998 50.43 1999 58.01 2000 61.57 2001 60.45 2002 64.14 2003 65.46 2004 64.91 2005 68.34 2006 73.75 2007 74.3 2008 80.84 2009 81.13 2010 85.24 2011 87.64 2012 92.78 2013 94.97 2014 97.97 2015 98.85 2016 103.18 2017 102.64 2018 112.31 2019 114.67 2020 118.61 2021 125 2022 130.74