Year Persons 2001-01-01 251875 2002-01-01 252325 2003-01-01 249900 2004-01-01 250300 2005-01-01 275975 2006-01-01 289550 2007-01-01 303150 2008-01-01 313025 2009-01-01 307125 2010-01-01 311925 2011-01-01 320725 2012-01-01 322300 2013-01-01 328675 2014-01-01 328675 2015-01-01 325750 2016-01-01 313750 2017-01-01 309525