Quarter	Persons
1998-01-01	20419700
1999-01-01	20511600
2000-01-01	20679600
2001-01-01	20867400
2002-01-01	20964500
2003-01-01	21153500
2003-04-01	21186000
2003-07-01	21214600
2003-10-01	21243700
2004-01-01	21279000
2004-04-01	21306200
2004-07-01	21353600
2004-10-01	21373500
2005-01-01	21405400
2005-04-01	21443800
2005-07-01	21462200
2005-10-01	21502800
2006-01-01	21534700
2006-04-01	21546800
2006-07-01	21584200
2006-10-01	21611100
2007-01-01	21629500
2007-04-01	21663700
2007-07-01	21687700
2007-10-01	21713500
2008-01-01	21727200
2008-04-01	21750700
2008-07-01	21772300
2008-10-01	21801100
2009-01-01	21810800
2009-04-01	21814400
2009-07-01	21832300
2009-10-01	21860600
2010-01-01	21871200
2010-04-01	21897500
2010-07-01	21925500
2010-10-01	21953600
2011-01-01	21964700
2011-04-01	21984500
2011-07-01	22006900
2011-10-01	22036200
2012-01-01	22047400
2012-04-01	22069300
2012-07-01	22091900
2012-10-01	22126900
2013-01-01	22143500
2013-04-01	22171500
2013-07-01	22193600
2013-10-01	22233300
2014-01-01	22861800
2014-04-01	22875600
2014-07-01	22903600
2014-10-01	22923100
2015-01-01	22934700
2015-04-01	22965100
2015-07-01	23000400
2015-10-01	23014700
2016-01-01	23057200
2016-04-01	23080800
2016-07-01	23113300
2016-10-01	23146300
2017-01-01	23209500
2017-04-01	23234900
2017-07-01	23258600
2017-10-01	23288700
2018-01-01	23299800
2018-04-01	23305500