Year | Value | 2021 | 44.419190484308 | 2020 | 44.419190484308 | 2019 | 44.419190484308 | 2018 | 44.419190484308 | 2017 | 44.419190484308 | 2016 | 44.293804572229 | 2015 | 44.382445972309 | 2014 | 44.418432865504 | 2013 | 44.508210693789 | 2012 | 44.51199878781 | 2011 | 44.419190484308 | 2010 | 44.659734454609 | 2009 | 44.419190484308 | 2008 | 44.542303539974 | 2007 | 44.750648711101 | 2006 | 44.750648711101 | 2005 | 44.553667822035 | 2004 | 44.618065420384 | 2003 | 44.500634505748 | 2002 | 44.805576074398 | 2001 | 44.690039206773 | 2000 | 44.830198685531 | 1999 | 44.828304638521 | 1998 | 44.851033202644 | 1997 | 44.926795083054 | 1996 | 44.993086728413 | 1995 | 44.957099835218 | 1994 | 44.945735553156 | 1993 | 44.936265318105 | 1992 | 44.474117847605 | 1991 | 44.758224899142 | 1990 | 44.748754664091 | 1989 | 44.474117847605 | 1988 | 44.470329753585 | 1987 | 44.470329753585 | 1986 | 44.453283330492 | 1985 | 44.453283330492 | 1984 | 44.443813095441 | 1983 | 44.443813095441 | 1982 | 44.443813095441 | 1981 | 44.443813095441 | 1980 | 44.440025001421 | 1979 | 44.440025001421 | 1978 | 44.43813095441 | 1977 | 44.43434286039 | 1976 | 44.43434286039 | 1975 | 44.43434286039 | 1974 | 44.409720249257 | 1973 | 44.400250014205 | 1972 | 44.390779779154 | 1971 | 44.369945262041 | 1970 | 44.354792885959 | 1969 | 44.345322650908 | 1968 | 44.326382180806 | 1967 | 44.316911945754 | 1966 | 44.303653616683 | 1965 | 44.28281909957 | 1964 | 44.263878629468 | 1963 | 44.244938159365 | 1962 | 44.222209595242 | 1961 | 44.201375078129 |
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