Quarter	Persons
1998-04-01	334300
1999-01-01	328700
1999-04-01	320200
1999-07-01	329700
1999-10-01	330700
2000-01-01	317000
2000-04-01	324300
2000-07-01	312600
2000-10-01	318800
2001-01-01	331300
2001-04-01	325700
2001-07-01	327500
2001-10-01	323500
2002-01-01	329100
2002-04-01	336900
2002-07-01	325200
2002-10-01	332500
2003-01-01	351700
2003-04-01	329000
2003-07-01	328500
2003-10-01	318300
2004-01-01	335000
2004-04-01	327900
2004-07-01	333600
2004-10-01	334400
2005-01-01	328800
2005-04-01	325800
2005-07-01	316400
2005-10-01	334600
2006-01-01	340700
2006-04-01	356200
2006-07-01	344900
2006-10-01	326200
2007-01-01	327800
2007-04-01	356100
2007-07-01	345100
2007-10-01	345800
2008-01-01	350100
2008-04-01	362400
2008-07-01	350400
2008-10-01	348700
2009-01-01	356100
2009-04-01	362900
2009-07-01	353600
2009-10-01	350000
2010-01-01	356200
2010-04-01	342800
2010-07-01	349100
2010-10-01	341900
2011-01-01	359100
2011-04-01	346200
2011-07-01	352000
2011-10-01	347000
2012-01-01	353800
2012-04-01	352200
2012-07-01	350300
2012-10-01	356700
2013-01-01	344400
2013-04-01	333000
2013-07-01	335700
2013-10-01	345600
2014-01-01	341900
2014-04-01	332800
2014-07-01	352400
2014-10-01	327800
2015-01-01	340100
2015-04-01	339000
2015-07-01	330600
2015-10-01	341500
2016-01-01	345900
2016-04-01	322200
2016-07-01	329600
2016-10-01	333200
2017-01-01	319900
2017-04-01	318700
2017-07-01	315300
2017-10-01	292300
2018-01-01	302600
2018-04-01	311500