Quarter	Persons
1998-04-01	31689000
1999-04-01	31652200
2000-04-01	31731800
2001-04-01	31699000
2002-04-01	31755900
2003-04-01	31831000
2004-04-01	31859800
2005-01-01	32051500
2005-04-01	31989000
2005-07-01	32096700
2005-10-01	32100200
2006-01-01	32047800
2006-04-01	32053800
2006-07-01	32100700
2006-10-01	32005900
2007-01-01	32039000
2007-04-01	32095700
2007-07-01	32063000
2007-10-01	32063300
2008-01-01	32021700
2008-04-01	32045000
2008-07-01	32068500
2008-10-01	32098800
2009-01-01	32010300
2009-04-01	31951500
2009-07-01	31801700
2009-10-01	31907100
2010-01-01	31295200
2010-04-01	31203800
2010-07-01	31146500
2010-10-01	31192000
2011-01-01	31013000
2011-04-01	30886400
2011-07-01	30918400
2011-10-01	30992700
2012-01-01	30878000
2012-04-01	30902200
2012-07-01	30891700
2012-10-01	30902500
2013-01-01	30778400
2013-04-01	30809000
2013-07-01	30849300
2013-10-01	30846200
2014-01-01	30766600
2014-04-01	30725400
2014-07-01	30733600
2014-10-01	30802300
2015-01-01	30805600
2015-04-01	30753800
2015-07-01	30732400
2015-10-01	30896300
2016-01-01	31025100
2016-04-01	30904300
2016-07-01	30801400
2016-10-01	30788300
2017-01-01	30892700
2017-04-01	30714900
2017-07-01	30858300
2017-10-01	30739900
2018-01-01	30942400
2018-04-01	30717400