Quarter	Persons
1998-01-01	18154800
1999-01-01	18280200
2000-01-01	18414900
2001-01-01	18602600
2002-01-01	18678600
2003-01-01	18886600
2003-04-01	18914100
2003-07-01	18949100
2003-10-01	18974800
2004-01-01	19015500
2004-04-01	19032000
2004-07-01	19080600
2004-10-01	19114500
2005-01-01	19134000
2005-04-01	19185400
2005-07-01	19206900
2005-10-01	19242700
2006-01-01	19292100
2006-04-01	19312400
2006-07-01	19344300
2006-10-01	19389300
2007-01-01	19415300
2007-04-01	19442800
2007-07-01	19476200
2007-10-01	19501400
2008-01-01	19503400
2008-04-01	19536200
2008-07-01	19544600
2008-10-01	19567700
2009-01-01	19576200
2009-04-01	19575300
2009-07-01	19586600
2009-10-01	19620500
2010-01-01	19617300
2010-04-01	19645800
2010-07-01	19663700
2010-10-01	19680900
2011-01-01	19675900
2011-04-01	19669000
2011-07-01	19658700
2011-10-01	19656700
2012-01-01	19642500
2012-04-01	19629800
2012-07-01	19623300
2012-10-01	19622000
2013-01-01	19606800
2013-04-01	19602400
2013-07-01	19591700
2013-10-01	19592200
2014-01-01	20129500
2014-04-01	20121900
2014-07-01	20109300
2014-10-01	20098100
2015-01-01	20093400
2015-04-01	20080800
2015-07-01	20087700
2015-10-01	20070600
2016-01-01	20074600
2016-04-01	20067200
2016-07-01	20067400
2016-10-01	20077200
2017-01-01	20091600
2017-04-01	20088700
2017-07-01	20093200
2017-10-01	20088100
2018-01-01	20069300
2018-04-01	20054800