Year Persons 1998-01-01 12503875 1999-01-01 12806825 2000-01-01 13192900 2001-01-01 13547500 2002-01-01 13801825 2003-01-01 13960275 2004-01-01 14504150 2005-01-01 14519625 2006-01-01 14849400 2007-01-01 14967425 2008-01-01 15355225 2009-01-01 15224275 2010-01-01 15233200 2011-01-01 15373550 2012-01-01 15508300 2013-01-01 15389550 2014-01-01 15473750 2015-01-01 15646275 2016-01-01 15929000 2017-01-01 16165350