Quarterly Persons
1999-04-01 20752000
1999-07-01 20822400
1999-10-01 20890900
2000-01-01 20823000
2000-04-01 20888400
2000-07-01 20905400
2000-10-01 20872700
2001-01-01 20855200
2001-04-01 20846100
2001-07-01 20786000
2001-10-01 20775800
2002-01-01 20692400
2002-04-01 20772200
2002-07-01 20752000
2002-10-01 20779500
2003-01-01 20661300
2003-04-01 20695500
2003-07-01 20635500
2003-10-01 20646200
2004-01-01 20665300
2004-04-01 20650900
2004-07-01 20601900
2004-10-01 20724000
2005-01-01 20805700
2005-04-01 20829300
2005-07-01 20873100
2005-10-01 20951000
2006-01-01 21098400
2006-04-01 21127200
2006-07-01 21074900
2006-10-01 21130000
2007-01-01 21162200
2007-04-01 21228100
2007-07-01 21263900
2007-10-01 21308500
2008-01-01 21420600
2008-04-01 21481600
2008-07-01 21471900
2008-10-01 21561700
2009-01-01 21686800
2009-04-01 21637600
2009-07-01 21670800
2009-10-01 21713600
2010-01-01 21675500
2010-04-01 21750400
2010-07-01 21813000
2010-10-01 21863600
2011-01-01 21965500
2011-04-01 21964700
2011-07-01 21987200
2011-10-01 22048400
2012-01-01 22066000
2012-04-01 22070700
2012-07-01 22154400
2012-10-01 22204500
2013-01-01 22224800
2013-04-01 22243300
2013-07-01 22224500
2013-10-01 22254500
2014-01-01 22383000
2014-04-01 22417300
2014-07-01 22420600
2014-10-01 22395900
2015-01-01 22460200
2015-04-01 22450100
2015-07-01 22441000
2015-10-01 22509600
2016-01-01 22550700
2016-04-01 22615300
2016-07-01 22616700
2016-10-01 22641700
2017-01-01 22692100
2017-04-01 22801900
2017-07-01 22764900
2017-10-01 22817600
2018-01-01 22881100
2018-04-01 22845400