Year Persons 2005-01-01 30959400 2006-01-01 30900625 2007-01-01 30925725 2008-01-01 30655525 2009-01-01 30299250 2010-01-01 29560125 2011-01-01 29236550 2012-01-01 28990625 2013-01-01 28630450 2014-01-01 28415925 2015-01-01 28160850 2016-01-01 28022525 2017-01-01 27822725