Quarter	Persons
2000-04-01	18396300
2001-04-01	18273400
2002-04-01	18383800
2003-04-01	18641300
2004-04-01	18935300
2005-01-01	19031500
2005-04-01	18998500
2005-07-01	19059700
2005-10-01	19160900
2006-01-01	19243700
2006-04-01	19242200
2006-07-01	19338500
2006-10-01	19423500
2007-01-01	19539700
2007-04-01	19630900
2007-07-01	19719400
2007-10-01	19926500
2008-01-01	19879100
2008-04-01	19977000
2008-07-01	20072300
2008-10-01	20236500
2009-01-01	20168300
2009-04-01	20253700
2009-07-01	20353200
2009-10-01	20521900
2010-01-01	20455700
2010-04-01	20617500
2010-07-01	20642100
2010-10-01	20873000
2011-01-01	20986900
2011-04-01	21045400
2011-07-01	21081900
2011-10-01	21144900
2012-01-01	21285400
2012-04-01	21321900
2012-07-01	21390300
2012-10-01	21419300
2013-01-01	21539800
2013-04-01	21610000
2013-07-01	21620600
2013-10-01	21666700
2014-01-01	21810600
2014-04-01	21876800
2014-07-01	21873000
2014-10-01	22018500
2015-01-01	22152700
2015-04-01	22134900
2015-07-01	22254800
2015-10-01	22254500
2016-01-01	22412500
2016-04-01	22514000
2016-07-01	22436300
2016-10-01	22650900
2017-01-01	22734400
2017-04-01	22796100
2017-07-01	22898300
2017-10-01	22980800
2018-01-01	23132900
2018-04-01	23225000