Year Persons 2005-01-01 20563000 2006-01-01 21593000 2007-01-01 22414000 2008-01-01 23136000 2009-01-01 23987000 2010-01-01 24762000 2011-01-01 25464000 2012-01-01 26300000 2013-01-01 26943000 2014-01-01 27556000 2015-01-01 28099000 2016-01-01 28795000