Year Persons 2000-01-01 279150 2001-01-01 275325 2002-01-01 275150 2003-01-01 278725 2004-01-01 277850 2005-01-01 271425 2006-01-01 274225 2007-01-01 266475 2008-01-01 272200 2009-01-01 274875 2010-01-01 278150 2011-01-01 279125 2012-01-01 276600 2013-01-01 265150 2014-01-01 263275 2015-01-01 261500 2016-01-01 260200 2017-01-01 250825