Quarterly Persons
1998-04-01 5000
1999-04-01 3400
2000-04-01 4400
2001-04-01 2800
2002-04-01 3700
2003-01-01 5100
2003-04-01 5100
2003-07-01 5100
2003-10-01 5100
2004-01-01 3700
2004-04-01 3700
2004-07-01 3700
2004-10-01 3700
2005-01-01 3400
2005-04-01 3400
2005-07-01 3400
2005-10-01 3400
2006-01-01 3600
2006-04-01 3600
2006-07-01 3600
2006-10-01 3600
2007-01-01 4600
2007-04-01 2700
2007-07-01 3600
2007-10-01 4100
2008-01-01 2500
2008-04-01 3100
2008-07-01 3900
2008-10-01 3900
2009-01-01 2800
2009-04-01 2200
2009-07-01 3600
2009-10-01 2900
2010-01-01 1900
2010-04-01 2500
2010-07-01 2200
2010-10-01 2700
2011-01-01 2000
2011-04-01 2400
2011-07-01 2800
2011-10-01 3500
2012-01-01 2200
2012-04-01 3000
2012-07-01 3600
2012-10-01 3500
2013-01-01 4200
2013-04-01 4400
2013-07-01 3600
2013-10-01 2500
2014-01-01 3700
2014-04-01 2700
2014-07-01 4100
2014-10-01 3300
2015-01-01 2300
2015-04-01 3300
2015-07-01 2400
2016-04-01 2200
2016-07-01 2200
2016-10-01 3400
2017-01-01 3000
2017-04-01 3300
2017-07-01 3300
2017-10-01 2900
2018-01-01 2700
2018-04-01 2300