Quarter	Persons
1999-04-01	22056500
2000-04-01	21875300
2001-04-01	21850000
2002-04-01	21770100
2003-04-01	21769400
2004-04-01	21701200
2005-01-01	22001000
2005-04-01	22205700
2005-07-01	22326000
2005-10-01	22270600
2006-01-01	22208400
2006-04-01	22283800
2006-07-01	22346000
2006-10-01	22509600
2007-01-01	22117900
2007-04-01	22216900
2007-07-01	22501000
2007-10-01	22415000
2008-01-01	22193000
2008-04-01	22191600
2008-07-01	22504100
2008-10-01	22365000
2009-01-01	22216300
2009-04-01	22163600
2009-07-01	22226700
2009-10-01	22321300
2010-01-01	21624600
2010-04-01	21562500
2010-07-01	21700200
2010-10-01	21675900
2011-01-01	21486000
2011-04-01	21623700
2011-07-01	21757700
2011-10-01	21807900
2012-01-01	21602400
2012-04-01	21620800
2012-07-01	21918800
2012-10-01	21834300
2013-01-01	21659100
2013-04-01	21828800
2013-07-01	21850300
2013-10-01	21905200
2014-01-01	21776400
2014-04-01	21779200
2014-07-01	22002500
2014-10-01	21966600
2015-01-01	21887100
2015-04-01	21723500
2015-07-01	21937700
2015-10-01	22154400
2016-01-01	22314100
2016-04-01	22231200
2016-07-01	22527900
2016-10-01	22522100
2017-01-01	22379600
2017-04-01	22365400
2017-07-01	22728600
2017-10-01	22542000
2018-01-01	22448200
2018-04-01	22360600