Quarterly Persons
1998-04-01 27600
1999-04-01 24800
2000-04-01 25100
2001-04-01 25000
2002-04-01 23900
2003-01-01 22700
2003-04-01 23200
2003-07-01 23700
2003-10-01 22600
2004-01-01 23100
2004-04-01 23800
2004-07-01 23500
2004-10-01 22600
2005-01-01 20700
2005-04-01 24100
2005-07-01 23300
2005-10-01 21300
2006-01-01 20800
2006-04-01 22800
2006-07-01 21200
2006-10-01 21100
2007-01-01 20100
2007-04-01 20700
2007-07-01 22300
2007-10-01 20600
2008-01-01 19100
2008-04-01 21500
2008-07-01 21100
2008-10-01 19700
2009-01-01 19100
2009-04-01 20100
2009-07-01 20800
2009-10-01 19200
2010-01-01 16800
2010-04-01 19900
2010-07-01 20100
2010-10-01 19900
2011-01-01 17900
2011-04-01 19200
2011-07-01 21700
2011-10-01 21500
2012-01-01 19900
2012-04-01 20700
2012-07-01 20900
2012-10-01 20700
2013-01-01 19500
2013-04-01 20800
2013-07-01 22400
2013-10-01 21100