Year Persons 2000-01-01 6372725 2001-01-01 6366100 2002-01-01 6356850 2003-01-01 6253650 2004-01-01 6281975 2005-01-01 6318575 2006-01-01 6232775 2007-01-01 6234900 2008-01-01 6278200 2009-01-01 6378725 2010-01-01 6168800 2011-01-01 6156875 2012-01-01 6166150 2013-01-01 6131050 2014-01-01 6123425 2015-01-01 6098300 2016-01-01 5984850 2017-01-01 5947975