Quarter	Persons
1998-04-01	235300
1999-04-01	246500
2000-04-01	256000
2001-04-01	262400
2002-04-01	276700
2003-04-01	284600
2004-04-01	300200
2005-04-01	317700
2006-04-01	311400
2007-04-01	302200
2008-04-01	312600
2009-04-01	321600
2010-01-01	350500
2010-04-01	340100
2010-07-01	325400
2010-10-01	344900
2011-01-01	333600
2011-04-01	335400
2011-07-01	318600
2011-10-01	325800
2012-01-01	345700
2012-04-01	345200
2012-07-01	310100
2012-10-01	322900
2013-01-01	336400
2013-04-01	350200
2013-07-01	334200
2013-10-01	330700
2014-01-01	349200
2014-04-01	348800
2014-07-01	334300
2014-10-01	335400
2015-01-01	339500
2015-04-01	349700
2015-07-01	341100
2015-10-01	324900
2016-01-01	336900
2016-04-01	345500
2016-07-01	325200
2016-10-01	321100
2017-01-01	337900
2017-04-01	330100
2017-07-01	311000
2017-10-01	320600
2018-01-01	336700
2018-04-01	325800