Year Persons 2005-01-01 19692000 2006-01-01 20704000 2007-01-01 21566000 2008-01-01 22230000 2009-01-01 22733000 2010-01-01 23451000 2011-01-01 24156000 2012-01-01 25013000 2013-01-01 25691000 2014-01-01 26410000 2015-01-01 27040000 2016-01-01 27767000