Year	Persons
2000-01-01	19069600
2001-01-01	19201675
2002-01-01	19313400
2003-01-01	19446675
2004-01-01	19601125
2005-01-01	19795025
2006-01-01	20021600
2007-01-01	20215750
2008-01-01	20355175
2009-01-01	20453475
2010-01-01	20573100
2011-01-01	20672775
2012-01-01	20660100
2013-01-01	20669025
2014-01-01	20726150
2015-01-01	20789600
2016-01-01	20816100
2017-01-01	20864725