| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 19,471 | | 2004 | Reporting | 19,882 | | 2005 | Reporting | 19,998 | | 2006 | Reporting | 20,173 | | 2007 | Reporting | 20,833 | | 2008 | Reporting | 21,110 | | 2009 | Reporting | 21,205 | | 2010 | Reporting | 21,384 | | 2011 | Reporting | 21,277 | | 2012 | Reporting | 19,886 |
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