Quarter	Persons
2003-01-01	17666000
2003-04-01	17684000
2003-07-01	17774800
2003-10-01	17508600
2004-01-01	17675200
2004-04-01	17883300
2004-07-01	18135800
2004-10-01	17943200
2005-01-01	18116600
2005-04-01	18237800
2005-07-01	18338600
2005-10-01	17971300
2006-01-01	18012900
2006-04-01	18172700
2006-07-01	18426300
2006-10-01	18401000
2007-01-01	18442300
2007-04-01	18769800
2007-07-01	18963900
2007-10-01	18880700
2008-01-01	19152300
2008-04-01	19306200
2008-07-01	19262700
2008-10-01	19188200
2009-01-01	19079300
2009-04-01	19227300
2009-07-01	19202500
2009-10-01	19035500
2010-01-01	19196500
2010-04-01	19297900
2010-07-01	19470900
2010-10-01	19226600
2011-01-01	19185500
2011-04-01	19392200
2011-07-01	19442300
2011-10-01	19324500
2012-01-01	19322300
2012-04-01	19501800
2012-07-01	19597700
2012-10-01	19435900
2013-01-01	19360000
2013-04-01	19515300
2013-07-01	19766200
2013-10-01	19556300
2014-01-01	20142300
2014-04-01	20365800
2014-07-01	20323500
2014-10-01	20259900
2015-01-01	20245400
2015-04-01	20370300
2015-07-01	20466100
2015-10-01	20477900
2016-01-01	20432900
2016-04-01	20578100
2016-07-01	20597800
2016-10-01	20411700
2017-01-01	20447100
2017-04-01	20822300
2017-07-01	20807500
2017-10-01	20889200
2018-01-01	20840100
2018-04-01	21078800