Year Persons 1998-01-01 515275 1999-01-01 537425 2000-01-01 593750 2001-01-01 578825 2002-01-01 618350 2003-01-01 583575 2004-01-01 548050 2005-01-01 554075 2006-01-01 553000 2007-01-01 570800 2008-01-01 539600 2009-01-01 489750 2010-01-01 466825 2011-01-01 423100 2012-01-01 343050 2013-01-01 288350 2014-01-01 275800 2015-01-01 277500 2016-01-01 289875 2017-01-01 307525