Year Persons 1998-01-01 320600 1999-01-01 315275 2000-01-01 308625 2001-01-01 319075 2002-01-01 328025 2003-01-01 345375 2004-01-01 332900 2005-01-01 349400 2006-01-01 356150 2007-01-01 361625 2008-01-01 368025 2009-01-01 362100 2010-01-01 356100 2011-01-01 330725 2012-01-01 301025 2013-01-01 290250 2014-01-01 279450 2015-01-01 287900 2016-01-01 298350 2017-01-01 322475