Quarter	Persons
2006-01-01	14095200
2006-04-01	15425300
2006-07-01	15514700
2006-10-01	15324100
2007-01-01	14738100
2007-04-01	15814700
2007-07-01	15880000
2007-10-01	15323900
2008-01-01	14930200
2008-04-01	16249500
2008-07-01	16276200
2008-10-01	15751600
2009-01-01	14959900
2009-04-01	16131800
2009-07-01	16297800
2009-10-01	16288600
2010-01-01	16078300
2010-04-01	17297500
2010-07-01	17230300
2010-10-01	17217400
2011-01-01	17166300
2011-04-01	18287900
2011-07-01	18385300
2011-10-01	18141000
2012-01-01	17694200
2012-04-01	18986700
2012-07-01	18886600
2012-10-01	19024900
2013-01-01	18630400
2013-04-01	19601300
2013-07-01	19258100
2013-10-01	19289900
2014-01-01	18819100
2014-04-01	19697400
2014-07-01	19411900
2014-10-01	19358700
2015-01-01	19207300
2015-04-01	20085000
2015-07-01	19858700
2015-10-01	19876400
2016-01-01	19685700
2016-04-01	20542900
2016-07-01	20135700
2016-10-01	20138500
2017-01-01	20133400
2017-04-01	21112300
2017-07-01	21042700
2017-10-01	21076700
2018-01-01	20914000
2018-04-01	21410000