Year 2014-2016 = 100 1961 22.71 1962 24.88 1963 24.23 1964 28.69 1965 26.29 1966 31.41 1967 31.79 1968 33.04 1969 33.71 1970 34.85 1971 35.48 1972 37.28 1973 40.57 1974 41.39 1975 42.35 1976 47.14 1977 49.7 1978 50.43 1979 51.8 1980 48.98 1981 50.89 1982 53.23 1983 59.51 1984 54.66 1985 54.63 1986 55.17 1987 55.99 1988 48.17 1989 56.43 1990 50.48 1991 36.67 1992 40.49 1993 47.85 1994 47.92 1995 48.99 1996 48.67 1997 50.39 1998 53.84 1999 49.57 2000 51.88 2001 53.23 2002 52.12 2003 54.89 2004 58.48 2005 58.38 2006 61.97 2007 61.1 2008 70.64 2009 75.19 2010 82.74 2011 87.45 2012 93.86 2013 93.67 2014 95.94 2015 99.91 2016 104.15 2017 105.84 2018 106.17 2019 107.67 2020 114.06 2021 114.68 2022 121.68