| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 18,458 | | 2004 | Reporting | 18,411 | | 2005 | Reporting | 18,479 | | 2006 | Reporting | 18,458 | | 2007 | Reporting | 18,588 | | 2008 | Reporting | 18,954 | | 2009 | Reporting | 19,064 | | 2010 | Reporting | 19,071 | | 2011 | Reporting | 18,261 | | 2012 | Reporting | 18,123 |
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