Year Persons 1998-01-01 329250 1999-01-01 312150 2000-01-01 306675 2001-01-01 290550 2002-01-01 281850 2003-01-01 266550 2004-01-01 276050 2005-01-01 250200 2006-01-01 236075 2007-01-01 221400 2008-01-01 211500 2009-01-01 204450 2010-01-01 193625 2011-01-01 181000 2012-01-01 175050 2013-01-01 173850 2014-01-01 162600 2015-01-01 147775 2016-01-01 139550 2017-01-01 136525