Quarter	Persons
1999-04-01	556800
2000-01-01	577800
2000-04-01	581600
2000-07-01	589800
2000-10-01	587700
2001-01-01	580300
2001-04-01	589300
2001-07-01	585900
2001-10-01	582400
2002-01-01	580400
2002-04-01	580500
2002-07-01	577900
2002-10-01	579400
2003-01-01	577500
2003-04-01	576400
2003-07-01	577100
2003-10-01	576500
2004-01-01	571000
2004-04-01	570500
2004-07-01	571700
2004-10-01	569300
2005-01-01	568200
2005-04-01	568500
2005-07-01	565300
2005-10-01	568100
2006-01-01	565000
2006-04-01	563500
2006-07-01	565300
2006-10-01	566800
2007-01-01	561000
2007-04-01	560200
2007-07-01	560900
2007-10-01	561400
2008-01-01	558400
2008-04-01	558800
2008-07-01	558400
2008-10-01	556900
2009-01-01	556100
2009-04-01	556900
2009-07-01	557700
2009-10-01	556400
2010-01-01	554300
2010-04-01	554200
2010-07-01	556300
2010-10-01	555500
2011-01-01	552000
2011-04-01	552800
2011-07-01	552800
2011-10-01	552800
2012-01-01	549100
2012-04-01	549200
2012-07-01	549400
2012-10-01	550100
2013-01-01	548100
2013-04-01	547900
2013-07-01	547800
2013-10-01	547200
2014-01-01	546800
2014-04-01	547000
2014-07-01	547100
2014-10-01	546300
2015-01-01	546400
2015-04-01	546500
2015-07-01	546600
2015-10-01	545600
2016-01-01	545700
2016-04-01	545800
2016-07-01	545900
2016-10-01	546200
2017-01-01	543600
2017-04-01	544500
2017-07-01	544000
2017-10-01	544500
2018-01-01	544900
2018-04-01	545000