Quarter	Persons
1998-04-01	281800
1999-04-01	285000
2000-04-01	286900
2001-04-01	293600
2002-04-01	294600
2003-01-01	299500
2003-04-01	299500
2003-07-01	299500
2003-10-01	299500
2004-01-01	301000
2004-04-01	301000
2004-07-01	301000
2004-10-01	301000
2005-01-01	303800
2005-04-01	303800
2005-07-01	303800
2005-10-01	303800
2006-01-01	306700
2006-04-01	306700
2006-07-01	306700
2006-10-01	306700
2007-01-01	316500
2007-04-01	314300
2007-07-01	316200
2007-10-01	315800
2008-01-01	315200
2008-04-01	322900
2008-07-01	317400
2008-10-01	317400
2009-01-01	328400
2009-04-01	330000
2009-07-01	328600
2009-10-01	331300
2010-01-01	335200
2010-04-01	336500
2010-07-01	332300
2010-10-01	337000
2011-01-01	343400
2011-04-01	344700
2011-07-01	343900
2011-10-01	345300
2012-01-01	355500
2012-04-01	353700
2012-07-01	355000
2012-10-01	355700
2013-01-01	362700
2013-04-01	360600
2013-07-01	355500
2013-10-01	358000
2014-01-01	363800
2014-04-01	366100
2014-07-01	362000
2014-10-01	365600
2015-01-01	385900
2015-04-01	385900
2015-07-01	385900
2015-10-01	385900
2016-01-01	395800
2016-04-01	395800
2016-07-01	395800
2016-10-01	395500
2017-01-01	407900
2017-04-01	407100
2017-07-01	406900
2017-10-01	406900
2018-01-01	414900
2018-04-01	414900