Quarterly Persons
1999-04-01 20152200
2000-04-01 20188000
2001-04-01 20135500
2002-04-01 19855900
2003-04-01 19529400
2004-04-01 19230400
2005-01-01 19319500
2005-04-01 19600200
2005-07-01 19804300
2005-10-01 19820100
2006-01-01 19587300
2006-04-01 19947800
2006-07-01 20152200
2006-10-01 20314400
2007-01-01 19945200
2007-04-01 20324500
2007-07-01 20631500
2007-10-01 20612200
2008-01-01 20314800
2008-04-01 20468500
2008-07-01 20959200
2008-10-01 20782200
2009-01-01 20316000
2009-04-01 20307700
2009-07-01 20395000
2009-10-01 20584500
2010-01-01 19752200
2010-04-01 19944000
2010-07-01 20167500
2010-10-01 20212800
2011-01-01 19951000
2011-04-01 20284800
2011-07-01 20486700
2011-10-01 20627400
2012-01-01 20228600
2012-04-01 20420300
2012-07-01 20716000
2012-10-01 20683100
2013-01-01 20289200
2013-04-01 20612000
2013-07-01 20668500
2013-10-01 20765800
2014-01-01 20469600
2014-04-01 20603200
2014-07-01 20872900
2014-10-01 20845300
2015-01-01 20664400
2015-04-01 20594900
2015-07-01 20871600
2015-10-01 21101600
2016-01-01 21211600
2016-04-01 21196500
2016-07-01 21533400
2016-10-01 21560200
2017-01-01 21335000
2017-04-01 21392300
2017-07-01 21814100
2017-10-01 21667400
2018-01-01 21495800
2018-04-01 21463600