Quarter	Persons
2000-04-01	170397000
2001-04-01	171250700
2002-04-01	172024700
2003-04-01	172858900
2004-04-01	173628300
2005-01-01	174643100
2005-04-01	175504700
2005-07-01	175488900
2005-10-01	176076700
2006-01-01	176323200
2006-04-01	177146000
2006-07-01	177249000
2006-10-01	177544100
2007-01-01	178078400
2007-04-01	178939900
2007-07-01	179593800
2007-10-01	179857200
2008-01-01	179569500
2008-04-01	180284400
2008-07-01	180601900
2008-10-01	180958700
2009-01-01	180395800
2009-04-01	180732300
2009-07-01	180482700
2009-10-01	181066800
2010-01-01	179001700
2010-04-01	179604100
2010-07-01	179099500
2010-10-01	179381800
2011-01-01	178491700
2011-04-01	178797400
2011-07-01	178561000
2011-10-01	179117400
2012-01-01	178714000
2012-04-01	179291200
2012-07-01	179112600
2012-10-01	179317600
2013-01-01	178576500
2013-04-01	179139500
2013-07-01	178363300
2013-10-01	178521800
2014-01-01	178969800
2014-04-01	179115600
2014-07-01	178838400
2014-10-01	179099100
2015-01-01	178248500
2015-04-01	178749500
2015-07-01	178343000
2015-10-01	178781000
2016-01-01	178220800
2016-04-01	178483100
2016-07-01	178483300
2016-10-01	178354900
2017-01-01	177812900
2017-04-01	178200400
2017-07-01	178222000
2017-10-01	177788000
2018-01-01	177237900
2018-04-01	177647200