| Year | Value | | 2023 | 107,342 | | 2022 | 106,799 | | 2021 | 102,099 | | 2020 | 100,364 | | 2019 | 101,276 | | 2018 | 99,891 | | 2017 | 98,930 | | 2016 | 98,030 | | 2015 | 96,578 | | 2014 | 94,116 | | 2013 | 91,946 | | 2012 | 90,231 | | 2011 | 88,633 | | 2010 | 88,622 | | 2009 | 87,884 | | 2008 | 87,672 | | 2007 | 86,375 | | 2006 | 84,393 | | 2005 | 81,965 | | 2004 | 80,249 | | 2003 | 81,251 | | 2002 | 80,238 | | 2001 | 80,022 | | 2000 | 80,045 | | 1999 | 77,257 | | 1998 | 73,954 | | 1997 | 71,348 | | 1996 | 71,617 | | 1995 | 72,643 | | 1994 | 69,907 | | 1993 | 68,739 | | 1992 | 67,787 | | 1991 | 65,940 |
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