Quarterly Persons
1998-04-01 31283500
1999-04-01 31292700
2000-04-01 31407900
2001-04-01 31524000
2002-04-01 31604400
2003-04-01 31647600
2004-04-01 31750700
2005-01-01 31759500
2005-04-01 31800200
2005-07-01 31912700
2005-10-01 31951000
2006-01-01 31872100
2006-04-01 31862800
2006-07-01 31891600
2006-10-01 31964800
2007-01-01 31770300
2007-04-01 31828000
2007-07-01 31969900
2007-10-01 31893100
2008-01-01 31769900
2008-04-01 31803100
2008-07-01 31873600
2008-10-01 31834400
2009-01-01 31740800
2009-04-01 31752600
2009-07-01 31618500
2009-10-01 31652000
2010-01-01 30748200
2010-04-01 30700300
2010-07-01 30720800
2010-10-01 30681800
2011-01-01 30434100
2011-04-01 30438100
2011-07-01 30492900
2011-10-01 30518500
2012-01-01 30534000
2012-04-01 30492000
2012-07-01 30544400
2012-10-01 30576100
2013-01-01 30518800
2013-04-01 30556800
2013-07-01 30536600
2013-10-01 30606800
2014-01-01 30555400
2014-04-01 30610600
2014-07-01 30586100
2014-10-01 30675500
2015-01-01 30724500
2015-04-01 30696300
2015-07-01 30709000
2015-10-01 30858800
2016-01-01 31206200
2016-04-01 31137500
2016-07-01 31194700
2016-10-01 31187600
2017-01-01 31247500
2017-04-01 31142000
2017-07-01 31459500
2017-10-01 31160700
2018-01-01 31240000
2018-04-01 31114400