Year | Value | 2021 | 23.255813953488 | 2020 | 23.255813953488 | 2019 | 23.255813953488 | 2018 | 23.255813953488 | 2017 | 23.255813953488 | 2016 | 23.255813953488 | 2015 | 25.581395348837 | 2014 | 27.906976744186 | 2013 | 29.06976744186 | 2012 | 30.232558139535 | 2011 | 32.558139534884 | 2010 | 34.883720930233 | 2009 | 37.209302325581 | 2008 | 37.209302325581 | 2007 | 37.209302325581 | 2006 | 37.209302325581 | 2005 | 37.209302325581 | 2004 | 37.209302325581 | 2003 | 39.53488372093 | 2002 | 39.53488372093 | 2001 | 41.860465116279 | 2000 | 41.860465116279 | 1999 | 41.860465116279 | 1998 | 44.186046511628 | 1997 | 44.186046511628 | 1996 | 44.186046511628 | 1995 | 44.186046511628 | 1994 | 44.186046511628 | 1993 | 44.186046511628 | 1992 | 44.186046511628 | 1991 | 44.186046511628 | 1990 | 44.186046511628 | 1989 | 44.186046511628 | 1988 | 44.186046511628 | 1987 | 44.186046511628 | 1986 | 44.186046511628 | 1985 | 44.186046511628 | 1984 | 44.186046511628 | 1983 | 44.186046511628 | 1982 | 44.186046511628 | 1981 | 44.186046511628 | 1980 | 44.186046511628 | 1979 | 44.186046511628 | 1978 | 44.186046511628 | 1977 | 44.186046511628 | 1976 | 44.186046511628 | 1975 | 44.186046511628 | 1974 | 44.186046511628 | 1973 | 44.186046511628 | 1972 | 44.186046511628 | 1971 | 44.186046511628 | 1970 | 44.186046511628 | 1969 | 44.186046511628 | 1968 | 44.186046511628 | 1967 | 44.186046511628 | 1966 | 44.186046511628 | 1965 | 44.186046511628 | 1964 | 44.186046511628 | 1963 | 44.186046511628 | 1962 | 44.186046511628 | 1961 | 44.186046511628 |
|