Quarter	Persons
1999-04-01	642400
1999-07-01	642100
1999-10-01	641600
2000-01-01	641400
2000-04-01	641300
2000-07-01	640600
2000-10-01	639000
2001-01-01	638700
2001-04-01	638500
2001-07-01	638900
2001-10-01	640100
2002-01-01	640700
2002-04-01	641600
2002-07-01	642800
2002-10-01	646200
2003-01-01	646300
2003-04-01	642800
2003-07-01	642400
2003-10-01	644600
2004-01-01	644400
2004-04-01	639600
2004-07-01	639300
2004-10-01	644200
2005-01-01	640600
2005-04-01	637400
2005-07-01	639800
2005-10-01	642400
2006-01-01	632500
2006-04-01	638400
2006-07-01	636900
2006-10-01	635800
2007-01-01	659500
2007-04-01	663600
2007-07-01	665400
2007-10-01	667200
2008-01-01	668500
2008-04-01	667000
2008-07-01	662100
2008-10-01	656800
2009-01-01	653400
2009-04-01	649200
2009-07-01	635100
2009-10-01	630700
2010-01-01	625000
2010-04-01	615900
2010-07-01	604800
2010-10-01	592500
2011-01-01	588400
2011-04-01	579300
2011-07-01	575800
2011-10-01	572600
2012-01-01	569400
2012-04-01	566600
2012-07-01	565700
2012-10-01	565000
2013-01-01	564100
2013-04-01	563300
2013-07-01	564500
2013-10-01	565500
2014-01-01	566200
2014-04-01	567200
2014-07-01	568100
2014-10-01	569400
2015-01-01	570500
2015-04-01	571600
2015-07-01	573500
2015-10-01	574600
2016-01-01	574000
2016-04-01	574700
2016-07-01	578600
2016-10-01	581600
2017-01-01	583400
2017-04-01	584800
2017-07-01	588200
2017-10-01	596200
2018-01-01	598400
2018-04-01	605500