Quarter	Persons
1999-04-01	15334200
2000-04-01	15397500
2001-04-01	15428500
2002-04-01	15197600
2003-04-01	14954900
2004-04-01	14660000
2005-01-01	14661900
2005-04-01	14968600
2005-07-01	15012100
2005-10-01	14982200
2006-01-01	14788400
2006-04-01	15047100
2006-07-01	15256500
2006-10-01	15307000
2007-01-01	14886000
2007-04-01	15261300
2007-07-01	15424200
2007-10-01	15356900
2008-01-01	15108200
2008-04-01	15268000
2008-07-01	15570100
2008-10-01	15400200
2009-01-01	15075800
2009-04-01	15046200
2009-07-01	15068700
2009-10-01	15212400
2010-01-01	14575100
2010-04-01	14783100
2010-07-01	14876000
2010-10-01	14822900
2011-01-01	14593400
2011-04-01	14804400
2011-07-01	14929000
2011-10-01	14960900
2012-01-01	14683900
2012-04-01	14925600
2012-07-01	15032200
2012-10-01	14933100
2013-01-01	14662500
2013-04-01	14961000
2013-07-01	14816300
2013-10-01	14913000
2014-01-01	14670600
2014-04-01	14868500
2014-07-01	14901800
2014-10-01	14894200
2015-01-01	14783600
2015-04-01	14850300
2015-07-01	14972100
2015-10-01	15081700
2016-01-01	15031000
2016-04-01	15081100
2016-07-01	15303100
2016-10-01	15236000
2017-01-01	15112200
2017-04-01	15060200
2017-07-01	15281200
2017-10-01	15141600
2018-01-01	14981500
2018-04-01	14929500