Year Persons 2006-01-01 18576000 2007-01-01 17419000 2008-01-01 19004000 2009-01-01 27370000 2010-01-01 27692000 2011-01-01 25935000 2012-01-01 25845000 2013-01-01 25897000 2014-01-01 24178000 2015-01-01 22419000 2016-01-01 21048000