Quarter	Persons
1998-01-01	455900
1999-01-01	453400
1999-04-01	452500
1999-07-01	449300
1999-10-01	450500
2000-01-01	450200
2000-04-01	453600
2000-07-01	452900
2000-10-01	452400
2001-01-01	449800
2001-04-01	453100
2001-07-01	453200
2001-10-01	455000
2002-01-01	452500
2002-04-01	458400
2002-07-01	455800
2002-10-01	459900
2003-01-01	467000
2003-04-01	471900
2003-07-01	468300
2003-10-01	472500
2004-01-01	472600
2004-04-01	479700
2004-07-01	478700
2004-10-01	484300
2005-01-01	488200
2005-04-01	486900
2005-07-01	486300
2005-10-01	487200
2006-01-01	489500
2006-04-01	488200
2006-07-01	484200
2006-10-01	487500
2007-01-01	490500
2007-04-01	491300
2007-07-01	490000
2007-10-01	487000
2008-01-01	490700
2008-04-01	495700
2008-07-01	494000
2008-10-01	489700
2009-01-01	489600
2009-04-01	492200
2009-07-01	490900
2009-10-01	489500
2010-01-01	491400
2010-04-01	488500
2010-07-01	489200
2010-10-01	488500
2011-01-01	485500
2011-04-01	488800
2011-07-01	485100
2011-10-01	485900
2012-01-01	488600
2012-04-01	491200
2012-07-01	490600
2012-10-01	487900
2013-01-01	488300
2013-04-01	492600
2013-07-01	492300
2013-10-01	488300
2014-01-01	488300
2014-04-01	487900
2014-07-01	485900
2014-10-01	488500
2015-01-01	484800
2015-04-01	488800
2015-07-01	488200
2015-10-01	493500
2016-01-01	500300
2016-04-01	505100
2016-07-01	502000
2016-10-01	492700
2017-01-01	485600
2017-04-01	487700
2017-07-01	482900
2017-10-01	472200
2018-01-01	473800
2018-04-01	472600