Quarter	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