Year 2014-2016 = 100 1961 18.41 1962 18.65 1963 19.01 1964 21.54 1965 19.36 1966 19.97 1967 21.5 1968 20.69 1969 22.35 1970 23.83 1971 24.79 1972 24.18 1973 24.77 1974 28.15 1975 26.14 1976 22.94 1977 19.64 1978 19.4 1979 20.16 1980 19.99 1981 19.59 1982 17.93 1983 17.78 1984 23.15 1985 22.92 1986 24.86 1987 25.21 1988 26.36 1989 28.91 1990 23.28 1991 34.69 1992 34.33 1993 37.23 1994 36.01 1995 41.75 1996 45.76 1997 44.48 1998 48.63 1999 51.43 2000 51.53 2001 53.67 2002 59.72 2003 62.29 2004 64.91 2005 66.73 2006 68.47 2007 66.27 2008 74.55 2009 82.22 2010 83.88 2011 87.35 2012 92.32 2013 94.97 2014 99.33 2015 99.62 2016 101.05 2017 108.02 2018 113.29 2019 119.88 2020 123.03 2021 131.73 2022 137.06