Quarterly Persons
1999-01-01 17101400
1999-04-01 17178900
1999-07-01 17261800
1999-10-01 17318600
2000-01-01 17429300
2000-04-01 17537400
2000-07-01 17647100
2000-10-01 17758100
2001-01-01 17867200
2001-04-01 17976700
2001-07-01 18085100
2001-10-01 18194200
2002-01-01 18405900
2002-04-01 18552000
2002-07-01 18690500
2002-10-01 18835100
2003-01-01 18965400
2003-04-01 19089400
2003-07-01 19206400
2003-10-01 19328700
2004-01-01 19439700
2004-04-01 19552400
2004-07-01 19671100
2004-10-01 19822100
2005-01-01 19974500
2005-04-01 20117900
2005-07-01 20225900
2005-10-01 20341000
2006-01-01 20446100
2006-04-01 20554800
2006-07-01 20672200
2006-10-01 20803900
2007-01-01 20942200
2007-04-01 21065100
2007-07-01 21183300
2007-10-01 21308400
2008-01-01 21400300
2008-04-01 21478700
2008-07-01 21545300
2008-10-01 21603700
2009-01-01 21637800
2009-04-01 21660400
2009-07-01 21676200
2009-10-01 21692100
2010-01-01 21693400
2010-04-01 21691000
2010-07-01 21687100
2010-10-01 21685700
2011-01-01 21673800
2011-04-01 21660500
2011-07-01 21645600
2011-10-01 21632500
2012-01-01 21587000
2012-04-01 21530000
2012-07-01 21465000
2012-10-01 21401100
2013-01-01 21322300
2013-04-01 21236300
2013-07-01 21125900
2013-10-01 21030800
2014-01-01 20933100
2014-04-01 20904100
2014-07-01 20843200
2014-10-01 20793700
2015-01-01 20738800
2015-04-01 20672800
2015-07-01 20605400
2015-10-01 20528500
2016-01-01 20467000
2016-04-01 20405200
2016-07-01 20349800
2016-10-01 20304000
2017-01-01 20259000
2017-04-01 20216100
2017-07-01 20186100
2017-10-01 20171000
2018-01-01 20153900
2018-04-01 20132700
2018-07-01 20120100