Quarter	Persons, Seasonally Adjusted
1999-04-01	1900
1999-07-01	1700
1999-10-01	1500
2000-01-01	1100
2000-04-01	1100
2000-07-01	1100
2000-10-01	1100
2001-01-01	1400
2001-04-01	1300
2001-07-01	900
2001-10-01	1000
2002-01-01	1300
2002-04-01	1200
2002-07-01	1200
2002-10-01	1700
2003-01-01	1400
2003-04-01	1300
2003-07-01	1400
2003-10-01	1400
2004-01-01	1500
2004-04-01	1000
2004-07-01	1600
2004-10-01	1500
2005-01-01	2000
2005-04-01	1900
2005-07-01	1500
2005-10-01	1900
2006-01-01	2100
2006-04-01	1600
2006-07-01	2300
2006-10-01	1800
2007-01-01	2200
2007-04-01	2200
2007-07-01	2100
2007-10-01	2300
2008-01-01	2100
2008-04-01	2800
2008-07-01	3500
2008-10-01	3200
2009-01-01	4600
2009-04-01	3700
2009-07-01	5600
2009-10-01	5300
2010-01-01	7200
2010-04-01	6500
2010-07-01	7400
2010-10-01	6800
2011-01-01	6500
2011-04-01	7200
2011-07-01	9500
2011-10-01	7800
2012-01-01	8000
2012-04-01	7100
2012-07-01	9300
2012-10-01	8600
2013-01-01	12200
2013-04-01	11400
2013-07-01	10400
2013-10-01	8800
2014-01-01	10400
2014-04-01	9600
2014-07-01	9600
2014-10-01	9400
2015-01-01	7500
2015-04-01	9200
2015-07-01	8400
2015-10-01	6600
2016-01-01	7200
2016-04-01	7100
2016-07-01	6900
2016-10-01	7300
2017-01-01	8600
2017-04-01	7700
2017-07-01	7400
2017-10-01	7800
2018-01-01	6100
2018-04-01	5800