Quarter	Persons
1998-01-01	620000
1998-04-01	588200
1998-07-01	558900
1998-10-01	615100
1999-01-01	615500
1999-04-01	541300
1999-07-01	558700
1999-10-01	601200
2000-01-01	606000
2000-04-01	534000
2000-07-01	548900
2000-10-01	599000
2001-01-01	600500
2001-04-01	534700
2001-07-01	550600
2001-10-01	592300
2002-01-01	609900
2002-04-01	541100
2002-07-01	562700
2002-10-01	612400
2003-01-01	619100
2003-04-01	547000
2003-07-01	564600
2003-10-01	621200
2004-01-01	622400
2004-04-01	564700
2004-07-01	578000
2004-10-01	624400
2005-01-01	625200
2005-04-01	566600
2005-07-01	589300
2005-10-01	615900
2006-01-01	617300
2006-04-01	563900
2006-07-01	568700
2006-10-01	616700
2007-01-01	628900
2007-04-01	557100
2007-07-01	566400
2007-10-01	610200
2008-01-01	607600
2008-04-01	536100
2008-07-01	572600
2008-10-01	608700
2009-01-01	629500
2009-04-01	571200
2009-07-01	616400
2009-10-01	652800
2010-01-01	639300
2010-04-01	582600
2010-07-01	608900
2010-10-01	651700
2011-01-01	640200
2011-04-01	572500
2011-07-01	613100
2011-10-01	641800
2012-01-01	649800
2012-04-01	586900
2012-07-01	619600
2012-10-01	659100
2013-01-01	669300
2013-04-01	596800
2013-07-01	632200
2013-10-01	680300
2014-01-01	676200
2014-04-01	610700
2014-07-01	650100
2014-10-01	665100
2015-01-01	670200
2015-04-01	616300
2015-07-01	639700
2015-10-01	677500
2016-01-01	674600
2016-04-01	610400
2016-07-01	648000
2016-10-01	672900
2017-01-01	674700
2017-04-01	608200
2017-07-01	633700
2017-10-01	652200
2018-01-01	658500
2018-04-01	602000