Year Persons 1998-01-01 308875 1999-01-01 316125 2000-01-01 317800 2001-01-01 314575 2002-01-01 313775 2003-01-01 313475 2004-01-01 311925 2005-01-01 314275 2006-01-01 312900 2007-01-01 315875 2008-01-01 315375 2009-01-01 318025 2010-01-01 319975 2011-01-01 317475 2012-01-01 318950 2013-01-01 318050 2014-01-01 315675 2015-01-01 309850 2016-01-01 309425 2017-01-01 306150