Quarterly Persons
1999-04-01 16500
2000-04-01 16500
2001-04-01 17200
2002-04-01 17300
2003-01-01 15300
2003-04-01 15300
2003-07-01 15300
2003-10-01 15300
2004-01-01 14100
2004-04-01 14100
2004-07-01 14100
2004-10-01 14100
2005-01-01 14900
2005-04-01 14900
2005-07-01 14900
2005-10-01 14900
2006-01-01 14600
2006-04-01 14600
2006-07-01 14600
2006-10-01 14600
2007-01-01 14500
2007-04-01 14100
2007-07-01 14700
2007-10-01 13800
2008-01-01 14200
2008-04-01 16900
2008-07-01 15200
2008-10-01 16400
2009-01-01 15000
2009-04-01 19400
2009-07-01 18800
2009-10-01 19900
2010-01-01 13200
2010-04-01 13200
2010-07-01 15500
2010-10-01 14400
2011-01-01 16000
2011-04-01 12600
2011-07-01 15700
2011-10-01 14800
2012-01-01 15100
2012-04-01 13400
2012-07-01 17900
2012-10-01 18900
2013-01-01 14100
2013-04-01 15900
2013-07-01 14800
2013-10-01 18100
2014-01-01 17700
2014-04-01 14100
2014-07-01 15400
2014-10-01 15500
2015-01-01 23000
2015-04-01 21800
2015-07-01 26900
2015-10-01 21300
2016-01-01 18400
2016-04-01 20200
2016-07-01 23300
2016-10-01 20600
2017-01-01 21700
2017-04-01 19100
2017-07-01 23400
2017-10-01 20800
2018-01-01 22200
2018-04-01 19700