Quarterly Persons
2000-04-01 19463900
2001-04-01 19322800
2002-04-01 19289700
2003-04-01 19345600
2004-04-01 19130400
2005-01-01 19242500
2005-04-01 19230300
2005-07-01 19097400
2005-10-01 19232700
2006-01-01 19103700
2006-04-01 19090300
2006-07-01 18986200
2006-10-01 19004200
2007-01-01 18959100
2007-04-01 18991000
2007-07-01 18803800
2007-10-01 18967400
2008-01-01 18929800
2008-04-01 18828600
2008-07-01 18738400
2008-10-01 18713600
2009-01-01 18794300
2009-04-01 18678100
2009-07-01 18569100
2009-10-01 18581700
2010-01-01 18373900
2010-04-01 18289900
2010-07-01 18246000
2010-10-01 18222600
2011-01-01 18115600
2011-04-01 18145600
2011-07-01 18062900
2011-10-01 18000000
2012-01-01 17969100
2012-04-01 17923200
2012-07-01 17816100
2012-10-01 17809900
2013-01-01 17794300
2013-04-01 17741600
2013-07-01 17653200
2013-10-01 17625200
2014-01-01 17735800
2014-04-01 17737500
2014-07-01 17624000
2014-10-01 17562600
2015-01-01 17637000
2015-04-01 17553800
2015-07-01 17385200
2015-10-01 17487600
2016-01-01 17499500
2016-04-01 17524300
2016-07-01 17413800
2016-10-01 17417700
2017-01-01 17441000
2017-04-01 17475200
2017-07-01 17334000
2017-10-01 17405500
2018-01-01 17471300
2018-04-01 17411900