Quarter	Persons, Seasonally Adjusted
1998-01-01	476000
1998-04-01	474400
1998-07-01	477200
1998-10-01	472500
1999-01-01	458800
1999-04-01	469400
1999-07-01	464600
1999-10-01	465500
2000-01-01	462400
2000-04-01	459900
2000-07-01	460200
2000-10-01	467100
2001-01-01	473700
2001-04-01	474700
2001-07-01	474000
2001-10-01	473900
2002-01-01	464200
2002-04-01	459700
2002-07-01	459400
2002-10-01	457400
2003-01-01	458800
2003-04-01	453100
2003-07-01	450100
2003-10-01	447700
2004-01-01	465200
2004-04-01	460400
2004-07-01	461100
2004-10-01	456300
2005-01-01	457900
2005-04-01	452600
2005-07-01	450100
2005-10-01	448600
2006-01-01	451300
2006-04-01	452300
2006-07-01	452800
2006-10-01	455700
2007-01-01	457000
2007-04-01	460600
2007-07-01	463500
2007-10-01	461700
2008-01-01	466000
2008-04-01	464800
2008-07-01	467700
2008-10-01	468400
2009-01-01	470000
2009-04-01	469300
2009-07-01	464900
2009-10-01	469100
2010-01-01	463500
2010-04-01	463400
2010-07-01	461100
2010-10-01	461800
2011-01-01	468600
2011-04-01	469200
2011-07-01	479400
2011-10-01	484900
2012-01-01	481800
2012-04-01	483400
2012-07-01	476500
2012-10-01	474500
2013-01-01	474900
2013-04-01	476800
2013-07-01	476500
2013-10-01	476800
2014-01-01	477100
2014-04-01	485700
2014-07-01	494200
2014-10-01	495500
2015-01-01	498000
2015-04-01	499900
2015-07-01	495300
2015-10-01	489300
2016-01-01	477900
2016-04-01	475100
2016-07-01	467400
2016-10-01	467400
2017-01-01	465400
2017-04-01	470800
2017-07-01	467000
2017-10-01	467500
2018-01-01	463500
2018-04-01	455600