| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 18,209 | | 2004 | Reporting | 18,305 | | 2005 | Reporting | 18,332 | | 2006 | Reporting | 18,451 | | 2007 | Reporting | 18,587 | | 2008 | Reporting | 18,647 | | 2009 | Reporting | 18,626 | | 2010 | Reporting | 18,846 | | 2011 | Reporting | 20,006 | | 2012 | Reporting | 19,864 |
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