Quarter	Persons
1998-04-01	135580100
1999-04-01	137125300
2000-04-01	138315800
2001-04-01	138992200
2002-04-01	140806500
2003-04-01	146789000
2004-04-01	148035000
2005-01-01	152574000
2005-04-01	153389900
2005-07-01	153850700
2005-10-01	154328000
2006-01-01	154439300
2006-04-01	155129200
2006-07-01	155743400
2006-10-01	156138500
2007-01-01	155503700
2007-04-01	156634600
2007-07-01	157966500
2007-10-01	157960300
2008-01-01	157522300
2008-04-01	158406400
2008-07-01	159321100
2008-10-01	159283400
2009-01-01	158605400
2009-04-01	159027800
2009-07-01	158820700
2009-10-01	159409400
2010-01-01	157890000
2010-04-01	158168800
2010-07-01	158157100
2010-10-01	158468800
2011-01-01	157605200
2011-04-01	158287000
2011-07-01	158524400
2011-10-01	159093400
2012-01-01	158676100
2012-04-01	159513200
2012-07-01	159946000
2012-10-01	160043200
2013-01-01	159392900
2013-04-01	159915200
2013-07-01	159979000
2013-10-01	159980700
2014-01-01	160233800
2014-04-01	160571800
2014-07-01	160964000
2014-10-01	161435500
2015-01-01	160615600
2015-04-01	161050200
2015-07-01	161186600
2015-10-01	161700200
2016-01-01	161731900
2016-04-01	162327000
2016-07-01	162851100
2016-10-01	162859200
2017-01-01	162202800
2017-04-01	162790700
2017-07-01	163788400
2017-10-01	163565900
2018-01-01	163025900
2018-04-01	163616600