Quarterly Persons
1999-01-01 17223400
1999-04-01 17304400
1999-07-01 17526800
1999-10-01 17648400
2000-01-01 17754400
2000-04-01 17909000
2000-07-01 18150000
2000-10-01 18235400
2001-01-01 17814300
2001-04-01 17931900
2001-07-01 18163500
2001-10-01 18291600
2002-01-01 18635000
2002-04-01 18870200
2002-07-01 19115100
2002-10-01 19224000
2003-01-01 19421200
2003-04-01 19639200
2003-07-01 19893500
2003-10-01 20017000
2004-01-01 20080000
2004-04-01 20266500
2004-07-01 20488900
2004-10-01 20667700
2005-01-01 20857400
2005-04-01 21129700
2005-07-01 21205600
2005-10-01 21369500
2006-01-01 21521300
2006-04-01 21726000
2006-07-01 21857800
2006-10-01 22014800
2007-01-01 22130800
2007-04-01 22354100
2007-07-01 22559600
2007-10-01 22659900
2008-01-01 22810400
2008-04-01 23032600
2008-07-01 23157100
2008-10-01 23262100
2009-01-01 23302600
2009-04-01 23293800
2009-07-01 23219800
2009-10-01 23225400
2010-01-01 23270500
2010-04-01 23406400
2010-07-01 23404400
2010-10-01 23377100
2011-01-01 23347300
2011-04-01 23466200
2011-07-01 23482500
2011-10-01 23440300
2012-01-01 23433000
2012-04-01 23489500
2012-07-01 23491900
2012-10-01 23360400
2013-01-01 23308400
2013-04-01 23207900
2013-07-01 23173400
2013-10-01 23070900
2014-01-01 22883900
2014-04-01 22975900
2014-07-01 22931700
2014-10-01 23026800
2015-01-01 22899400
2015-04-01 23015500
2015-07-01 22899500
2015-10-01 22873700
2016-01-01 22821000
2016-04-01 22875700
2016-07-01 22848300
2016-10-01 22745900
2017-01-01 22693300
2017-04-01 22727600
2017-07-01 22780900
2017-10-01 22765000
2018-01-01 22670300
2018-04-01 22834200
2018-07-01 22854000