Year 2014-2016 = 100 1961 42.12 1962 42.81 1963 46.24 1964 45.54 1965 49 1966 45.4 1967 49.49 1968 41.11 1969 43.89 1970 34.68 1971 48.5 1972 33.18 1973 38.31 1974 49.19 1975 61.16 1976 54.86 1977 33.77 1978 54.55 1979 40.17 1980 35.94 1981 52.47 1982 51.92 1983 36.53 1984 37.31 1985 47.16 1986 52.01 1987 57.58 1988 49.29 1989 55.79 1990 50.36 1991 52.9 1992 48.19 1993 52.99 1994 53.3 1995 58.62 1996 52.29 1997 48.86 1998 49.41 1999 70.05 2000 69.3 2001 65.23 2002 44.04 2003 60.01 2004 60.36 2005 69.18 2006 58.9 2007 53.12 2008 80.36 2009 88.89 2010 97.29 2011 68.54 2012 82.3 2013 82.41 2014 84.48 2015 110.23 2016 105.29 2017 134.25 2018 152.86 2019 153.59 2020 183.45 2021 179.91 2022 177.49