Year 2014-2016 = 100 1961 13.99 1962 14.87 1963 14.05 1964 12.45 1965 24.34 1966 24.31 1967 28.78 1968 30.14 1969 22.29 1970 23.63 1971 20.02 1972 33.51 1973 43.38 1974 39.77 1975 46.88 1976 51.34 1977 37.67 1978 48.95 1979 45.98 1980 53.14 1981 55.32 1982 57.5 1983 62.4 1984 58.16 1985 60.85 1986 65.22 1987 63.52 1988 65.11 1989 67.77 1990 68.7 1991 69.36 1992 68.16 1993 70.87 1994 74.4 1995 79.88 1996 83.04 1997 87.28 1998 86.12 1999 92.52 2000 84.5 2001 81.02 2002 88.67 2003 90.99 2004 86.18 2005 87.63 2006 87.38 2007 89.79 2008 90.24 2009 91.22 2010 94.93 2011 97.59 2012 100.26 2013 99.73 2014 100.06 2015 98.5 2016 101.44 2017 99.31 2018 99.17 2019 96.44 2020 99.85 2021 98.85 2022 98.35