Quarter	Persons
1998-01-01	19468100
1999-01-01	19761400
2000-01-01	20480100
2001-01-01	21092900
2002-01-01	21309100
2003-01-01	21779300
2003-04-01	21849100
2003-07-01	22105600
2003-10-01	21793400
2004-01-01	21857100
2004-04-01	22151900
2004-07-01	22402800
2004-10-01	22055700
2005-01-01	22123400
2005-04-01	22366400
2005-07-01	22479800
2005-10-01	22080800
2006-01-01	22022300
2006-04-01	22188900
2006-07-01	22546600
2006-10-01	22395600
2007-01-01	22395300
2007-04-01	22741300
2007-07-01	23009000
2007-10-01	22949500
2008-01-01	23043300
2008-04-01	23202600
2008-07-01	23374900
2008-10-01	23121800
2009-01-01	22832000
2009-04-01	23009700
2009-07-01	22977600
2009-10-01	22622700
2010-01-01	22635000
2010-04-01	22857800
2010-07-01	22916600
2010-10-01	22669200
2011-01-01	22595700
2011-04-01	22836900
2011-07-01	22913100
2011-10-01	22688700
2012-01-01	22633800
2012-04-01	22902500
2012-07-01	23037100
2012-10-01	22809600
2013-01-01	22666800
2013-04-01	22901700
2013-07-01	23093500
2013-10-01	22831400
2014-01-01	23223600
2014-04-01	23413900
2014-07-01	23381900
2014-10-01	23213700
2015-01-01	23125900
2015-04-01	23404800
2015-07-01	23556800
2015-10-01	23325500
2016-01-01	23281500
2016-04-01	23531800
2016-07-01	23524600
2016-10-01	23402900
2017-01-01	23399900
2017-04-01	23820000
2017-07-01	23866900
2017-10-01	23868900
2018-01-01	23787900
2018-04-01	23970100