Year 2014-2016 = 100 1961 18.74 1962 19.76 1963 19.51 1964 21.15 1965 21.86 1966 22.77 1967 23.51 1968 22.3 1969 23.72 1970 24.17 1971 25.06 1972 24.52 1973 24.86 1974 24.8 1975 23.14 1976 18.81 1977 18.4 1978 17.69 1979 16.64 1980 17.72 1981 16.64 1982 16.78 1983 16.9 1984 17.2 1985 17.38 1986 18.1 1987 18.12 1988 18.11 1989 18.08 1990 18 1991 18.86 1992 20.24 1993 20.32 1994 22.91 1995 22.38 1996 24.17 1997 24.39 1998 28.38 1999 27.58 2000 32.16 2001 36.9 2002 41.72 2003 45.12 2004 48.23 2005 52.4 2006 53.64 2007 60.96 2008 64.82 2009 80.89 2010 85.77 2011 93.77 2012 78.69 2013 105.73 2014 94.42 2015 100.7 2016 104.88 2017 105.13 2018 107.35 2019 110.28 2020 114.88 2021 117.5 2022 124.09