| Year | Value | | 2022 | 109,634 | | 2021 | 108,974 | | 2020 | 108,476 | | 2019 | 108,235 | | 2018 | 108,223 | | 2017 | 108,201 | | 2016 | 108,102 | | 2015 | 107,762 | | 2014 | 107,198 | | 2013 | 106,456 | | 2012 | 105,537 | | 2011 | 104,554 | | 2010 | 103,689 | | 2009 | 103,077 | | 2008 | 102,616 | | 2007 | 102,189 | | 2006 | 101,749 | | 2005 | 101,067 | | 2004 | 100,017 | | 2003 | 98,516 | | 2002 | 96,497 | | 2001 | 94,191 | | 2000 | 91,710 | | 1999 | 89,112 | | 1998 | 86,711 | | 1997 | 84,713 | | 1996 | 83,179 | | 1995 | 82,293 | | 1994 | 82,059 | | 1993 | 82,126 | | 1992 | 82,226 | | 1991 | 82,338 | | 1990 | 82,291 | | 1989 | 81,998 | | 1988 | 81,542 | | 1987 | 80,743 | | 1986 | 79,675 | | 1985 | 78,423 | | 1984 | 76,917 | | 1983 | 75,183 | | 1982 | 73,208 | | 1981 | 71,111 | | 1980 | 68,906 | | 1979 | 66,373 | | 1978 | 63,654 | | 1977 | 61,071 | | 1976 | 58,780 | | 1975 | 56,756 | | 1974 | 54,970 | | 1973 | 53,321 | | 1972 | 51,645 | | 1971 | 50,129 | | 1970 | 48,848 | | 1969 | 47,487 | | 1968 | 46,004 | | 1967 | 44,689 | | 1966 | 43,530 | | 1965 | 42,444 | | 1964 | 41,505 | | 1963 | 40,695 | | 1962 | 39,862 | | 1961 | 38,929 | | 1960 | 37,951 |
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