Year 2014-2016 = 100 1961 11.23 1962 12.6 1963 13.63 1964 14.53 1965 15.25 1966 15.4 1967 14.76 1968 16.75 1969 17.42 1970 17.74 1971 17.4 1972 19.41 1973 21.01 1974 22.87 1975 22.54 1976 24.07 1977 26.08 1978 26.64 1979 26.25 1980 27.86 1981 28.33 1982 28.08 1983 25.92 1984 26.77 1985 27.62 1986 28.79 1987 28.67 1988 29.41 1989 32.29 1990 34.95 1991 35.86 1992 37.43 1993 37.87 1994 38.62 1995 42.08 1996 44.93 1997 46.16 1998 48.5 1999 49.15 2000 50.31 2001 53.05 2002 56.47 2003 57.93 2004 61.7 2005 63.58 2006 65.98 2007 73.26 2008 74.54 2009 79.61 2010 78.86 2011 81.59 2012 86.57 2013 90.8 2014 96.52 2015 101.05 2016 102.43 2017 94.43 2018 97.67 2019 95.75 2020 97.47 2021 99.72 2022 100.13