Quarter	Persons
1998-04-01	505300
1998-10-01	505300
1999-04-01	504200
1999-10-01	503000
2000-04-01	502600
2000-10-01	502600
2001-04-01	497700
2001-10-01	497700
2002-01-01	493500
2002-04-01	493500
2002-07-01	493500
2002-10-01	493500
2003-01-01	490700
2003-04-01	490700
2003-07-01	490700
2003-10-01	490700
2004-01-01	485600
2004-04-01	485600
2004-07-01	485600
2004-10-01	485600
2005-01-01	478500
2005-04-01	478500
2005-07-01	478500
2005-10-01	478500
2006-01-01	473900
2006-04-01	473900
2006-07-01	473900
2006-10-01	473900
2007-01-01	469100
2007-04-01	469100
2007-07-01	469100
2007-10-01	469100
2008-01-01	465500
2008-04-01	465500
2008-07-01	465500
2008-10-01	465500
2009-01-01	460500
2009-04-01	460500
2009-07-01	460500
2009-10-01	460500
2010-01-01	452100
2010-04-01	452100
2010-07-01	452100
2010-10-01	452100
2011-01-01	442500
2011-04-01	442500
2011-07-01	442500
2011-10-01	442500
2012-01-01	436700
2012-04-01	436700
2012-07-01	436700
2012-10-01	436700
2013-01-01	430700
2013-04-01	430700
2013-07-01	430700
2013-10-01	430700
2014-01-01	422100
2014-04-01	420500
2014-07-01	418900
2014-10-01	418000
2015-01-01	414900
2015-04-01	413000
2015-07-01	411200
2015-10-01	409600
2016-01-01	408400
2016-04-01	406600
2016-07-01	404700
2016-10-01	403200
2017-01-01	400900
2017-04-01	398600
2017-07-01	396300
2017-10-01	394700
2018-01-01	393500
2018-04-01	392600