Quarter	Persons
1998-04-01	289600
1999-04-01	315000
2000-04-01	319200
2001-01-01	343800
2001-04-01	347100
2001-07-01	355700
2001-10-01	361700
2002-01-01	366900
2002-04-01	372500
2002-07-01	376000
2002-10-01	381100
2003-01-01	384900
2003-04-01	390400
2003-07-01	394800
2003-10-01	397300
2004-01-01	399600
2004-04-01	406000
2004-07-01	408500
2004-10-01	410000
2005-01-01	410800
2005-04-01	403700
2005-07-01	407400
2005-10-01	419900
2006-01-01	425500
2006-04-01	420200
2006-07-01	417600
2006-10-01	419400
2007-01-01	419400
2007-04-01	422600
2007-07-01	425200
2007-10-01	421800
2008-01-01	417000
2008-04-01	418700
2008-07-01	423100
2008-10-01	421900
2009-01-01	424700
2009-04-01	422800
2009-07-01	419700
2009-10-01	421000
2010-01-01	420600
2010-04-01	416900
2010-07-01	418200
2010-10-01	421000
2011-01-01	427500
2011-04-01	424700
2011-07-01	422400
2011-10-01	424400
2012-01-01	421600
2012-04-01	425400
2012-07-01	423700
2012-10-01	426400
2013-01-01	422600
2013-04-01	421200
2013-07-01	420500
2013-10-01	425000
2014-01-01	427200
2014-04-01	429300
2014-07-01	430700
2014-10-01	426900
2015-01-01	428500
2015-04-01	428100
2015-07-01	428500
2015-10-01	431100
2016-01-01	432000
2016-04-01	437400
2016-07-01	437700
2016-10-01	441100
2017-01-01	443500
2017-04-01	447500
2017-07-01	447200
2017-10-01	443500
2018-01-01	447900
2018-04-01	451800