Year Persons 2003-01-01 12800 2004-01-01 12000 2005-01-01 12775 2006-01-01 13625 2007-01-01 14900 2008-01-01 14575 2009-01-01 11825 2010-01-01 12075 2011-01-01 12325 2012-01-01 13275 2013-01-01 13750 2014-01-01 13900 2015-01-01 14275 2016-01-01 15750 2017-01-01 15650