Year Persons 2005-01-01 295800 2006-01-01 315200 2007-01-01 319100 2008-01-01 314400 2009-01-01 309300 2010-01-01 323775 2011-01-01 326350 2012-01-01 326450 2013-01-01 326725 2014-01-01 323575 2015-01-01 315125 2016-01-01 317825 2017-01-01 321900