Quarterly Persons
1998-04-01 3877700
1999-04-01 3883500
2000-04-01 3881100
2001-04-01 3936100
2002-04-01 3984200
2003-04-01 4026100
2004-04-01 4043200
2005-04-01 4071200
2006-04-01 4121800
2007-04-01 4170800
2008-04-01 4257000
2009-04-01 4322700
2010-01-01 4283800
2010-04-01 4286600
2010-07-01 4322600
2010-10-01 4301800
2011-01-01 4345900
2011-04-01 4342600
2011-07-01 4377200
2011-10-01 4399800
2012-01-01 4388400
2012-04-01 4391300
2012-07-01 4453200
2012-10-01 4437500
2013-01-01 4445900
2013-04-01 4440400
2013-07-01 4471900
2013-10-01 4496100
2014-01-01 4488900
2014-04-01 4511500
2014-07-01 4540500
2014-10-01 4588300
2015-01-01 4579000
2015-04-01 4569200
2015-07-01 4594100
2015-10-01 4645100
2016-01-01 4662000
2016-04-01 4629700
2016-07-01 4658300
2016-10-01 4690500
2017-01-01 4675100
2017-04-01 4663000
2017-07-01 4702500
2017-10-01 4707400
2018-01-01 4701600
2018-04-01 4701000