Year Persons 1998-01-01 15099100 1999-01-01 14082500 2000-01-01 12621200 2001-01-01 11109400 2002-01-01 11765400 2003-01-01 12952000 2004-01-01 13442000 2005-01-01 13760650 2006-01-01 12819900 2007-01-01 11584000 2008-01-01 11804050 2009-01-01 15092350 2010-01-01 15930325 2011-01-01 16042350 2012-01-01 18042550 2013-01-01 19085050 2014-01-01 18659025 2015-01-01 17473275 2016-01-01 16259650 2017-01-01 14746150