Year Persons 2003-01-01 12675 2004-01-01 12850 2005-01-01 13775 2006-01-01 14425 2007-01-01 14775 2008-01-01 15250 2009-01-01 14725 2010-01-01 15175 2011-01-01 14875 2012-01-01 15250 2013-01-01 15950 2014-01-01 15675 2015-01-01 16125 2016-01-01 15725 2017-01-01 15675