Year 2014-2016 = 100 1961 15.31 1962 15.34 1963 15.48 1964 15.44 1965 15.95 1966 15.65 1967 15.89 1968 15.58 1969 16.09 1970 16.46 1971 16.13 1972 16.7 1973 17.27 1974 18.43 1975 26.11 1976 33.54 1977 41.17 1978 42.09 1979 43.58 1980 45.1 1981 23.24 1982 22.57 1983 21.74 1984 23.63 1985 26.79 1986 26.52 1987 32.2 1988 26.27 1989 27.15 1990 19.7 1991 22.35 1992 25.87 1993 28.5 1994 26.02 1995 28.73 1996 29.54 1997 35.84 1998 37.69 1999 36.24 2000 39.42 2001 34.82 2002 33.26 2003 31.73 2004 29.28 2005 29.57 2006 34.93 2007 35.44 2008 35.31 2009 39.72 2010 36.57 2011 48.83 2012 67.61 2013 86.22 2014 83.41 2015 98.7 2016 117.89 2017 137.69 2018 131.3 2019 132.96 2020 124.57 2021 124.25 2022 129.17