Year 2014-2016 = 100 1961 25.51 1962 26.17 1963 26.92 1964 27.34 1965 27.88 1966 28.2 1967 29.07 1968 29.89 1969 30.75 1970 31.29 1971 32.37 1972 33.42 1973 34.44 1974 35.63 1975 37.2 1976 38.21 1977 39.41 1978 40.44 1979 41.35 1980 43.08 1981 45.17 1982 48.4 1983 50.32 1984 50.1 1985 50.4 1986 51.57 1987 52.28 1988 54.47 1989 55.54 1990 57.65 1991 50.48 1992 50.89 1993 51.29 1994 53.06 1995 54.35 1996 55.33 1997 58.87 1998 61.02 1999 62.27 2000 63.61 2001 65.37 2002 67.09 2003 68.56 2004 70.07 2005 72.25 2006 73.92 2007 76.42 2008 78.34 2009 81.79 2010 83.59 2011 87.77 2012 92.27 2013 95.72 2014 96.67 2015 98.1 2016 105.23 2017 108.73 2018 115.59 2019 120.38 2020 142.46 2021 142.15 2022 144.45