Year Persons 2003-01-01 18931150 2004-01-01 19060650 2005-01-01 19192250 2006-01-01 19334525 2007-01-01 19458925 2008-01-01 19537975 2009-01-01 19589650 2010-01-01 19651925 2011-01-01 19665075 2012-01-01 19629400 2013-01-01 19598275 2014-01-01 20114700 2015-01-01 20083125 2016-01-01 20071600 2017-01-01 20090400