Quarter	Persons, Seasonally Adjusted
2007-01-01	21700
2007-04-01	21900
2007-07-01	19700
2007-10-01	19900
2008-01-01	20200
2008-04-01	20600
2008-07-01	19000
2008-10-01	18100
2009-01-01	20200
2009-04-01	19400
2009-07-01	19700
2009-10-01	18700
2010-01-01	22900
2010-04-01	22000
2010-07-01	21300
2010-10-01	22000
2011-01-01	21500
2011-04-01	23500
2011-07-01	22000
2011-10-01	22600
2012-01-01	23800
2012-04-01	23800
2012-07-01	21500
2012-10-01	21800
2013-01-01	24400
2013-04-01	22900
2013-07-01	23700
2013-10-01	21900
2014-01-01	21000
2014-04-01	23600
2014-07-01	22500
2014-10-01	23300
2015-01-01	21000
2015-04-01	22100
2015-07-01	19700
2015-10-01	22700
2016-01-01	24300
2016-04-01	22900
2016-07-01	20600
2016-10-01	23200
2017-01-01	24900
2017-04-01	26400
2017-07-01	23100
2017-10-01	24300
2018-01-01	24000
2018-04-01	25000