Quarter	Persons
1998-04-01	321300
1999-04-01	323700
2000-04-01	324600
2001-04-01	329000
2002-04-01	329800
2003-01-01	335800
2003-04-01	335800
2003-07-01	335800
2003-10-01	335800
2004-01-01	339300
2004-04-01	339300
2004-07-01	339300
2004-10-01	339300
2005-01-01	342800
2005-04-01	342800
2005-07-01	342800
2005-10-01	342800
2006-01-01	346800
2006-04-01	346800
2006-07-01	346800
2006-10-01	346800
2007-01-01	352200
2007-04-01	354000
2007-07-01	353900
2007-10-01	354200
2008-01-01	353600
2008-04-01	361100
2008-07-01	357500
2008-10-01	357700
2009-01-01	371700
2009-04-01	371900
2009-07-01	371300
2009-10-01	375400
2010-01-01	378900
2010-04-01	378400
2010-07-01	374600
2010-10-01	380600
2011-01-01	387100
2011-04-01	391100
2011-07-01	388500
2011-10-01	391600
2012-01-01	398600
2012-04-01	399300
2012-07-01	399400
2012-10-01	400900
2013-01-01	405700
2013-04-01	406600
2013-07-01	397800
2013-10-01	403300
2014-01-01	411700
2014-04-01	412600
2014-07-01	406700
2014-10-01	410100
2015-01-01	425100
2015-04-01	425100
2015-07-01	425100
2015-10-01	425100
2016-01-01	436300
2016-04-01	436300
2016-07-01	436300
2016-10-01	436100
2017-01-01	459100
2017-04-01	454400
2017-07-01	449000
2017-10-01	449100
2018-01-01	458200
2018-04-01	458200