| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 18,109 | | 2004 | Reporting | 18,167 | | 2005 | Reporting | 18,188 | | 2006 | Reporting | 18,338 | | 2007 | Reporting | 17,946 | | 2008 | Reporting | 17,907 | | 2009 | Reporting | 17,914 | | 2010 | Reporting | 17,938 | | 2011 | Reporting | 19,046 | | 2012 | Reporting | 18,917 |
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