Quarterly 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