Year Persons 2005-01-01 20231000 2006-01-01 18839000 2007-01-01 17680000 2008-01-01 19343000 2009-01-01 27848000 2010-01-01 28217000 2011-01-01 26426000 2012-01-01 26363000 2013-01-01 26421000 2014-01-01 24690000 2015-01-01 22900000 2016-01-01 21525000