Quarter	Persons, Seasonally Adjusted
1998-04-01	3600
1999-04-01	5100
2000-04-01	4700
2001-04-01	3500
2002-04-01	4100
2003-04-01	5900
2004-04-01	8300
2005-04-01	9400
2006-04-01	9000
2007-04-01	10500
2008-04-01	7600
2009-04-01	6700
2010-01-01	9400
2010-04-01	9200
2010-07-01	10000
2010-10-01	9700
2011-01-01	11700
2011-04-01	10500
2011-07-01	9600
2011-10-01	10700
2012-01-01	10400
2012-04-01	10100
2012-07-01	8500
2012-10-01	11200
2013-01-01	11100
2013-04-01	11200
2013-07-01	8300
2013-10-01	8000
2014-01-01	9700
2014-04-01	12000
2014-07-01	9400
2014-10-01	9200
2015-01-01	11000
2015-04-01	10600
2015-07-01	13900
2015-10-01	12000
2016-01-01	11400
2016-04-01	11700
2016-07-01	10500
2016-10-01	10400
2017-01-01	12100
2017-04-01	11200
2017-07-01	12000
2017-10-01	13100
2018-01-01	14000
2018-04-01	13200