Quarter	Persons
2005-01-01	612700
2005-04-01	617100
2005-07-01	615100
2005-10-01	605900
2006-01-01	594300
2006-04-01	592100
2006-07-01	589500
2006-10-01	588100
2007-01-01	576400
2007-04-01	579200
2007-07-01	584800
2007-10-01	578200
2008-01-01	565500
2008-04-01	570400
2008-07-01	572600
2008-10-01	575400
2009-01-01	563300
2009-04-01	571300
2009-07-01	580300
2009-10-01	578100
2010-01-01	560500
2010-04-01	566700
2010-07-01	575400
2010-10-01	578000
2011-01-01	559200
2011-04-01	559900
2011-07-01	549700
2011-10-01	545900
2012-01-01	544200
2012-04-01	548000
2012-07-01	545500
2012-10-01	540600
2013-01-01	538000
2013-04-01	541700
2013-07-01	537000
2013-10-01	535800
2014-01-01	536100
2014-04-01	532900
2014-07-01	531500
2014-10-01	529600
2015-01-01	526700
2015-04-01	522500
2015-07-01	522100
2015-10-01	521100
2016-01-01	516600
2016-04-01	515100
2016-07-01	511700
2016-10-01	509400
2017-01-01	508400
2017-04-01	504400
2017-07-01	504400
2017-10-01	502500
2018-01-01	502500
2018-04-01	508700