Quarterly Persons
1998-01-01 20069200
1998-04-01 20305400
1998-07-01 20581500
1998-10-01 20527900
1999-01-01 20333600
1999-04-01 20553900
1999-07-01 20822400
1999-10-01 20796500
2000-01-01 20558100
2000-04-01 20876500
2000-07-01 21262700
2000-10-01 21378600
2001-01-01 21212200
2001-04-01 21305500
2001-07-01 21639900
2001-10-01 21624000
2002-01-01 21575800
2002-04-01 21695700
2002-07-01 21914600
2002-10-01 21867800
2003-01-01 21756500
2003-04-01 21995500
2003-07-01 22160300
2003-10-01 22064700
2004-01-01 22013000
2004-04-01 22364300
2004-07-01 22424300
2004-10-01 22452600
2005-01-01 22204100
2005-04-01 22456000
2005-07-01 22330600
2005-10-01 22455300
2006-01-01 22492800
2006-04-01 22900800
2006-07-01 22721400
2006-10-01 22724500
2007-01-01 22483100
2007-04-01 22911700
2007-07-01 23023700
2007-10-01 22965800
2008-01-01 22813100
2008-04-01 23218500
2008-07-01 23150600
2008-10-01 22974100
2009-01-01 22603400
2009-04-01 22838300
2009-07-01 22630300
2009-10-01 22526000
2010-01-01 22371700
2010-04-01 22602700
2010-07-01 22393900
2010-10-01 22521200
2011-01-01 22485300
2011-04-01 22656600
2011-07-01 22520600
2011-10-01 22519500
2012-01-01 22374500
2012-04-01 22647300
2012-07-01 22555900
2012-10-01 22465400
2013-01-01 22073600
2013-04-01 22163800
2013-07-01 22142100
2013-10-01 22165100
2014-01-01 21970700
2014-04-01 22249700
2014-07-01 22324900
2014-10-01 22298900
2015-01-01 22094300
2015-04-01 22431700
2015-07-01 22574300
2015-10-01 22479300
2016-01-01 22321900
2016-04-01 22855500
2016-07-01 22798800
2016-10-01 22735300
2017-01-01 22660600
2017-04-01 23017800
2017-07-01 23105200
2017-10-01 23017000
2018-01-01 22805900
2018-04-01 23398400