Year | Value | 2022 | 123.98097813133 | 2021 | 116.82975847032 | 2020 | 114.19766268979 | 2019 | 114.40578588194 | 2018 | 113.76273002713 | 2017 | 113.26592290194 | 2016 | 112.61695608153 | 2015 | 113.21958855866 | 2014 | 113.81440330709 | 2013 | 112.65947689861 | 2012 | 110.06351427879 | 2011 | 105.2477933984 | 2010 | 100 | 2009 | 97.253879786214 | 2008 | 96.676988610904 | 2007 | 90.6677293693 | 2006 | 88.798624842454 | 2005 | 87.951736012463 | 2004 | 87.579430357031 | 2003 | 86.147040090629 | 2002 | 85.711705793978 | 2001 | 86.048738797837 | 2000 | 85.199134767275 | 1999 | 84.054626858336 | 1998 | 84.040583816508 | 1997 | 84.265997291378 | 1996 | 82.610818347333 | 1995 | 81.483750972983 | 1994 | 80.105508583779 | 1993 | 77.696804595168 | 1992 | 75.957900646172 | 1991 | 74.276960162142 | 1990 | 71.816733093561 | 1989 | 69.414469489947 | 1988 | 67.823694395865 | 1987 | 66.806113566452 | 1986 | 66.458332776653 | 1985 | 67.392188601114 | 1984 | 67.0701693513 | 1983 | 65.369907712281 | 1982 | 64.597061512727 | 1981 | 62.162595984132 | 1980 | 57.461114936845 | 1979 | 52.94640505445 | 1978 | 50.872601085646 | 1977 | 48.50897979201 | 1976 | 47.021250857869 | 1975 | 47.903583602359 | 1974 | 46.718552763043 | 1973 | 38.178602257971 | 1972 | 31.912107656587 | 1971 | 31.261628771962 | 1970 | 30.720636432274 | 1969 | 30.578947962356 | 1968 | 30.662672967307 | 1967 | 30.463021032423 | 1966 | 29.477642127991 | 1965 | 28.898007478326 | 1964 | 28.846484398355 | 1963 | 28.357015138638 | 1962 | 27.745178563991 | 1961 | 27.629251634058 | 1960 | 27.51917493432 |
|