Quarter	Persons
1999-04-01	20752000
1999-07-01	20822400
1999-10-01	20890900
2000-01-01	20823000
2000-04-01	20888400
2000-07-01	20905400
2000-10-01	20872700
2001-01-01	20855200
2001-04-01	20846100
2001-07-01	20786000
2001-10-01	20775800
2002-01-01	20692400
2002-04-01	20772200
2002-07-01	20752000
2002-10-01	20779500
2003-01-01	20661300
2003-04-01	20695500
2003-07-01	20635500
2003-10-01	20646200
2004-01-01	20665300
2004-04-01	20650900
2004-07-01	20601900
2004-10-01	20724000
2005-01-01	20805700
2005-04-01	20829300
2005-07-01	20873100
2005-10-01	20951000
2006-01-01	21098400
2006-04-01	21127200
2006-07-01	21074900
2006-10-01	21130000
2007-01-01	21162200
2007-04-01	21228100
2007-07-01	21263900
2007-10-01	21308500
2008-01-01	21420600
2008-04-01	21481600
2008-07-01	21471900
2008-10-01	21561700
2009-01-01	21686800
2009-04-01	21637600
2009-07-01	21670800
2009-10-01	21713600
2010-01-01	21675500
2010-04-01	21750400
2010-07-01	21813000
2010-10-01	21863600
2011-01-01	21965500
2011-04-01	21964700
2011-07-01	21987200
2011-10-01	22048400
2012-01-01	22066000
2012-04-01	22070700
2012-07-01	22154400
2012-10-01	22204500
2013-01-01	22224800
2013-04-01	22243300
2013-07-01	22224500
2013-10-01	22254500
2014-01-01	22383000
2014-04-01	22417300
2014-07-01	22420600
2014-10-01	22395900
2015-01-01	22460200
2015-04-01	22450100
2015-07-01	22441000
2015-10-01	22509600
2016-01-01	22550700
2016-04-01	22615300
2016-07-01	22616700
2016-10-01	22641700
2017-01-01	22692100
2017-04-01	22801900
2017-07-01	22764900
2017-10-01	22817600
2018-01-01	22881100
2018-04-01	22845400