Year Persons 1998-01-01 303400 1999-01-01 331575 2000-01-01 315150 2001-01-01 301150 2002-01-01 297750 2003-01-01 292550 2004-01-01 326425 2005-01-01 311225 2006-01-01 281125 2007-01-01 264475 2008-01-01 237250 2009-01-01 280700 2010-01-01 349000 2011-01-01 455000 2012-01-01 599100 2013-01-01 660125 2014-01-01 638175 2015-01-01 616550 2016-01-01 600400 2017-01-01 550700