Quarter	Persons, Seasonally Adjusted
1999-01-01	2500
1999-04-01	1700
1999-07-01	1900
1999-10-01	2000
2000-01-01	2800
2000-04-01	2600
2000-07-01	2300
2000-10-01	1900
2001-01-01	1500
2001-04-01	1800
2001-07-01	1300
2001-10-01	2300
2002-01-01	1900
2002-04-01	1100
2002-07-01	1200
2002-10-01	1300
2003-01-01	1500
2003-04-01	1500
2003-07-01	1300
2003-10-01	1000
2004-01-01	2200
2004-04-01	1600
2004-07-01	1600
2004-10-01	1700
2005-01-01	1700
2005-04-01	2700
2005-07-01	2900
2005-10-01	2600
2006-01-01	1500
2006-04-01	1400
2006-07-01	1000
2006-10-01	1700
2007-01-01	1400
2007-04-01	1800
2007-07-01	2100
2007-10-01	1400
2008-01-01	1800
2008-04-01	2500
2008-07-01	1400
2008-10-01	2600
2009-01-01	2900
2009-04-01	2800
2009-07-01	1600
2009-10-01	1800
2010-01-01	1100
2010-04-01	2900
2010-07-01	2200
2010-10-01	4400
2011-01-01	3700
2011-04-01	5000
2011-07-01	5300
2011-10-01	4200
2012-01-01	4700
2012-04-01	4400
2012-07-01	4000
2012-10-01	3800
2013-01-01	6500
2013-04-01	4800
2013-07-01	4100
2013-10-01	4000
2014-01-01	5200
2014-04-01	4900
2014-07-01	6400
2014-10-01	6700
2015-01-01	5400
2015-04-01	5500
2015-07-01	6000
2015-10-01	5400
2016-01-01	4600
2016-04-01	4700
2016-07-01	4400
2016-10-01	7100
2017-01-01	6700
2017-04-01	4900
2017-07-01	5700
2017-10-01	4700
2018-01-01	4600
2018-04-01	4700