Year Persons 2000-01-01 314575 2001-01-01 313975 2002-01-01 316500 2003-01-01 318175 2004-01-01 317025 2005-01-01 316200 2006-01-01 313450 2007-01-01 329050 2008-01-01 330725 2009-01-01 321475 2010-01-01 303200 2011-01-01 286925 2012-01-01 280450 2013-01-01 277750 2014-01-01 278725 2015-01-01 280475 2016-01-01 283175 2017-01-01 288400