Year 2014-2016 = 100 1961 25.48 1962 34.89 1963 23.95 1964 23.88 1965 26.96 1966 29.32 1967 36.28 1968 35.94 1969 38.19 1970 40.08 1971 40.66 1972 39.8 1973 41.75 1974 40.67 1975 45.19 1976 47.61 1977 49.6 1978 50.8 1979 55.13 1980 55.06 1981 60.89 1982 63.59 1983 63.26 1984 57.45 1985 68.93 1986 63.02 1987 63.17 1988 61.4 1989 68.91 1990 66.24 1991 78.56 1992 83.11 1993 58.81 1994 37.99 1995 47.01 1996 53.01 1997 56.87 1998 63.05 1999 68.03 2000 75.13 2001 73.72 2002 90.48 2003 82.32 2004 81.56 2005 87.58 2006 89.97 2007 90.48 2008 91.71 2009 104.07 2010 99.14 2011 106.37 2012 116.62 2013 120.93 2014 97.24 2015 100.32 2016 102.45 2017 106.03 2018 111.58 2019 114.9 2020 116.33 2021 122.56 2022 123.19