| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 19,860 | | 2004 | Reporting | 20,494 | | 2005 | Reporting | 20,770 | | 2006 | Reporting | 21,277 | | 2007 | Reporting | 21,661 | | 2008 | Reporting | 22,036 | | 2009 | Reporting | 22,368 | | 2010 | Reporting | 22,997 | | 2011 | Reporting | 23,199 | | 2012 | Reporting | 23,782 |
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