| | | | | | | | | | | | | | | | Year | Reporting Status | Population | | 2003 | Reporting | 21,505 | | 2004 | Reporting | 21,529 | | 2005 | Reporting | 21,496 | | 2006 | Reporting | 21,593 | | 2007 | Reporting | 21,379 | | 2008 | Reporting | 21,294 | | 2009 | Does Not Partcipate | 23,422 | | 2010 | Reporting | 23,571 | | 2011 | Reporting | 23,676 | | 2012 | Reporting | 23,654 |
| | | | | | | |
|