Quarter	Persons
1998-04-01	478600
1999-04-01	478800
2000-01-01	485200
2000-04-01	485500
2000-07-01	487700
2000-10-01	485100
2001-01-01	480600
2001-04-01	479000
2001-07-01	483100
2001-10-01	483300
2002-01-01	481700
2002-04-01	481800
2002-07-01	480800
2002-10-01	479900
2003-01-01	476400
2003-04-01	477200
2003-07-01	478400
2003-10-01	477300
2004-01-01	474900
2004-04-01	475700
2004-07-01	475000
2004-10-01	475100
2005-01-01	473200
2005-04-01	472300
2005-07-01	473800
2005-10-01	474000
2006-01-01	470700
2006-04-01	469200
2006-07-01	470900
2006-10-01	471900
2007-01-01	465800
2007-04-01	465100
2007-07-01	465800
2007-10-01	466100
2008-01-01	463100
2008-04-01	464000
2008-07-01	464000
2008-10-01	463400
2009-01-01	461400
2009-04-01	461500
2009-07-01	461400
2009-10-01	461800
2010-01-01	459100
2010-04-01	459100
2010-07-01	459100
2010-10-01	457700
2011-01-01	454700
2011-04-01	455700
2011-07-01	455700
2011-10-01	454900
2012-01-01	449700
2012-04-01	450200
2012-07-01	450000
2012-10-01	450200
2013-01-01	444400
2013-04-01	444400
2013-07-01	444200
2013-10-01	444200
2014-01-01	438600
2014-04-01	438600
2014-07-01	438300
2014-10-01	438500
2015-01-01	432600
2015-04-01	432900
2015-07-01	432900
2015-10-01	432300
2016-01-01	429800
2016-04-01	430200
2016-07-01	430000
2016-10-01	429500
2017-01-01	425300
2017-04-01	426200
2017-07-01	425600
2017-10-01	425900
2018-01-01	423200
2018-04-01	423500