Quarter	Persons
1998-04-01	495100
1999-04-01	502300
2000-04-01	504100
2001-04-01	543200
2002-04-01	537900
2003-04-01	566900
2004-04-01	582200
2005-04-01	597700
2006-04-01	611600
2007-04-01	632800
2008-04-01	647700
2009-04-01	652700
2010-01-01	643000
2010-04-01	645100
2010-07-01	638900
2010-10-01	647100
2011-01-01	657500
2011-04-01	661200
2011-07-01	660500
2011-10-01	669800
2012-01-01	666900
2012-04-01	675600
2012-07-01	682100
2012-10-01	681000
2013-01-01	690100
2013-04-01	699900
2013-07-01	696000
2013-10-01	699400
2014-01-01	697500
2014-04-01	710300
2014-07-01	707200
2014-10-01	723000
2015-01-01	735300
2015-04-01	733800
2015-07-01	740100
2015-10-01	755400
2016-01-01	751900
2016-04-01	770600
2016-07-01	775100
2016-10-01	780900
2017-01-01	776500
2017-04-01	795500
2017-07-01	801000
2017-10-01	817800
2018-01-01	814400
2018-04-01	830900