Year Persons 2000-01-01 287650 2001-01-01 292100 2002-01-01 290175 2003-01-01 296300 2004-01-01 291100 2005-01-01 295075 2006-01-01 317425 2007-01-01 323875 2008-01-01 323325 2009-01-01 281575 2010-01-01 269325 2011-01-01 294825 2012-01-01 299700 2013-01-01 304750 2014-01-01 308750 2015-01-01 316850 2016-01-01 317425 2017-01-01 323675