| Year | Value | | 2021 | 85,544 | | 2020 | 85,555 | | 2019 | 85,494 | | 2018 | 85,626 | | 2017 | 85,545 | | 2016 | 85,375 | | 2015 | 85,262 | | 2014 | 84,581 | | 2013 | 85,266 | | 2012 | 85,248 | | 2011 | 85,166 | | 2010 | 85,292 | | 2009 | 85,281 | | 2008 | 85,194 | | 2007 | 84,158 | | 2006 | 85,253 | | 2005 | 85,542 | | 2004 | 85,286 | | 2003 | 85,394 | | 2002 | 85,542 | | 2001 | 85,835 | | 2000 | 86,075 | | 1999 | 86,031 | | 1998 | 86,151 | | 1997 | 86,660 | | 1996 | 87,086 | | 1995 | 87,388 |
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