Quarterly Persons
1998-04-01 25900
1999-04-01 23300
2000-04-01 23500
2001-04-01 23400
2002-04-01 22000
2003-01-01 20800
2003-04-01 21300
2003-07-01 21700
2003-10-01 21100
2004-01-01 21500
2004-04-01 22200
2004-07-01 21400
2004-10-01 20700
2005-01-01 19300
2005-04-01 22500
2005-07-01 21700
2005-10-01 19600
2006-01-01 18700
2006-04-01 21500
2006-07-01 20000
2006-10-01 19600
2007-01-01 18200
2007-04-01 18600
2007-07-01 20500
2007-10-01 19000
2008-01-01 17600
2008-04-01 19900
2008-07-01 19200
2008-10-01 17900
2009-01-01 17600
2009-04-01 18400
2009-07-01 19500
2009-10-01 17800
2010-01-01 15800
2010-04-01 18100
2010-07-01 18200
2010-10-01 18700
2011-01-01 16500
2011-04-01 17600
2011-07-01 20000
2011-10-01 20300
2012-01-01 18800
2012-04-01 19600
2012-07-01 19500
2012-10-01 19500
2013-01-01 18500
2013-04-01 19400
2013-07-01 20900
2013-10-01 20100
2014-01-01 19600
2014-04-01 19200
2014-07-01 20300
2014-10-01 19600
2015-01-01 18200
2015-04-01 19300
2015-07-01 19100
2015-10-01 18700
2016-01-01 18500
2016-04-01 18500
2016-07-01 19900
2016-10-01 19700
2017-01-01 18400
2017-04-01 17900
2017-07-01 20100
2017-10-01 18700
2018-01-01 18300
2018-04-01 18600