Quarter	Persons
1998-01-01	22668400
1998-04-01	22664400
1998-07-01	22640000
1998-10-01	22634700
1999-01-01	22629100
1999-04-01	22621800
1999-07-01	22610500
1999-10-01	22615000
2000-01-01	22612800
2000-04-01	22607200
2000-07-01	22606600
2000-10-01	22603600
2001-01-01	22597000
2001-04-01	22591400
2001-07-01	22592000
2001-10-01	22592600
2002-01-01	22588200
2002-04-01	22594900
2002-07-01	22593000
2002-10-01	22588200
2003-01-01	22592900
2003-04-01	22594600
2003-07-01	22592200
2003-10-01	22589500
2004-01-01	22407000
2004-04-01	22441200
2004-07-01	22466900
2004-10-01	22492100
2005-01-01	22516500
2005-04-01	22538900
2005-07-01	22543500
2005-10-01	22546700
2006-01-01	22551100
2006-04-01	22555900
2006-07-01	22558800
2006-10-01	22562600
2007-01-01	22567600
2007-04-01	22577200
2007-07-01	22613900
2007-10-01	22655800
2008-01-01	22697100
2008-04-01	22740500
2008-07-01	22770000
2008-10-01	22800700
2009-01-01	22832700
2009-04-01	22863400
2009-07-01	22878500
2009-10-01	22893300
2010-01-01	22908600
2010-04-01	22924200
2010-07-01	22938600
2010-10-01	22953600
2011-01-01	22970000
2011-04-01	22985800
2011-07-01	22994900
2011-10-01	23003400
2012-01-01	23014700
2012-04-01	23035300
2012-07-01	23050900
2012-10-01	23071300
2013-01-01	23087400
2013-04-01	23101300
2013-07-01	23107400
2013-10-01	23115200
2014-01-01	23121900
2014-04-01	23125700
2014-07-01	23111800
2014-10-01	23098800
2015-01-01	23077400
2015-04-01	23063000
2015-07-01	23044700
2015-10-01	23017400
2016-01-01	22989900
2016-04-01	22973200
2016-07-01	22958000
2016-10-01	22938200
2017-01-01	22921100
2017-04-01	22909900
2017-07-01	22895600
2017-10-01	22881600
2018-01-01	22865900
2018-04-01	22852400