Quarter	Persons
1998-04-01	531800
1999-01-01	530200
1999-04-01	530200
1999-07-01	530200
1999-10-01	528300
2000-01-01	531200
2000-04-01	531200
2000-07-01	531200
2000-10-01	531200
2001-01-01	533800
2001-04-01	533800
2001-07-01	533800
2001-10-01	533800
2002-01-01	547000
2002-04-01	547000
2002-07-01	547000
2002-10-01	547000
2003-01-01	559700
2003-04-01	559700
2003-07-01	559700
2003-10-01	559700
2004-01-01	570800
2004-04-01	570800
2004-07-01	562000
2004-10-01	570800
2005-01-01	583300
2005-04-01	586100
2005-07-01	592000
2005-10-01	594600
2006-01-01	601000
2006-04-01	606600
2006-07-01	611300
2006-10-01	616200
2007-01-01	621600
2007-04-01	626900
2007-07-01	633600
2007-10-01	636600
2008-01-01	641000
2008-04-01	644400
2008-07-01	649000
2008-10-01	651800
2009-01-01	655000
2009-04-01	657800
2009-07-01	662100
2009-10-01	665400
2010-01-01	669200
2010-04-01	673100
2010-07-01	677600
2010-10-01	681600
2011-01-01	684300
2011-04-01	685700
2011-07-01	686900
2011-10-01	688600
2012-01-01	689400
2012-04-01	690400
2012-07-01	692400
2012-10-01	694800
2013-01-01	696900
2013-04-01	698500
2013-07-01	699500
2013-10-01	702400
2014-01-01	704700
2014-04-01	707800
2014-07-01	710400
2014-10-01	713700
2015-01-01	715700
2015-04-01	718200
2015-07-01	720800
2015-10-01	722600
2016-01-01	725800
2016-04-01	729000
2016-07-01	731900
2016-10-01	735100
2017-01-01	733600
2017-04-01	736100
2017-07-01	738300
2017-10-01	740600
2018-01-01	742600
2018-04-01	745400