Quarter	Persons, Seasonally Adjusted
1999-01-01	17235888.492899700
1999-04-01	17328175.693046600
1999-07-01	17485317.742027298
1999-10-01	17653518.072026398
2000-01-01	17769637.459718800
2000-04-01	17927740.627741400
2000-07-01	18108545.109347697
2000-10-01	18242876.803192202
2001-01-01	17829261.815115700
2001-04-01	17942993.948782500
2001-07-01	18125771.355917700
2001-10-01	18303372.880184200
2002-01-01	18650545.324846700
2002-04-01	18874438.338356797
2002-07-01	19082158.061147300
2002-10-01	19237158.275649197
2003-01-01	19441692.989300203
2003-04-01	19639367.910111600
2003-07-01	19864391.038748000
2003-10-01	20025348.061840200
2004-01-01	20102868.882994500
2004-04-01	20260925.141451000
2004-07-01	20465691.233436300
2004-10-01	20673514.742118098
2005-01-01	20883215.462646000
2005-04-01	21116318.284677500
2005-07-01	21184858.751905400
2005-10-01	21377907.500771202
2006-01-01	21552963.654343900
2006-04-01	21707305.119159598
2006-07-01	21835466.250749700
2006-10-01	22024464.975746900
2007-01-01	22168609.593201503
2007-04-01	22330730.594320900
2007-07-01	22534692.933694698
2007-10-01	22670366.878782902
2008-01-01	22853541.002378598
2008-04-01	23004808.508122600
2008-07-01	23133967.075197200
2008-10-01	23269983.414301600
2009-01-01	23337829.647166600
2009-04-01	23263238.712266800
2009-07-01	23205377.654099900
2009-10-01	23235453.986466600
2010-01-01	23308729.508364800
2010-04-01	23376929.739875400
2010-07-01	23386083.143184200
2010-10-01	23386557.608575497
2011-01-01	23389767.574098803
2011-04-01	23440552.277691297
2011-07-01	23460648.395908500
2011-10-01	23445431.752301400
2012-01-01	23470456.680537100
2012-04-01	23468131.413301500
2012-07-01	23473844.103017103
2012-10-01	23362367.803144400
2013-01-01	23340631.862010400
2013-04-01	23188876.308048000
2013-07-01	23160329.479164300
2013-10-01	23070762.350777300
2014-01-01	22918293.743490500
2014-04-01	22954840.402682700
2014-07-01	22919238.930500200
2014-10-01	23026026.923326600
2015-01-01	22940608.739761800
2015-04-01	22989222.148160800
2015-07-01	22883693.002470900
2015-10-01	22874676.109606497
2016-01-01	22869003.042644400
2016-04-01	22847651.644567300
2016-07-01	22826878.473428500
2016-10-01	22747566.839359798
2017-01-01	22747983.404132303
2017-04-01	22700080.267811900
2017-07-01	22753150.170767800
2017-10-01	22765686.157288000
2018-01-01	22732404.724374300
2018-04-01	22805087.024330802
2018-07-01	22821779.796689600