Quarter	Persons
2003-04-01	17629000
2004-04-01	18486000
2005-01-01	19316000
2005-04-01	19621000
2005-07-01	19737000
2005-10-01	20094000
2006-01-01	20208000
2006-04-01	20573000
2006-07-01	20856000
2006-10-01	21181000
2007-01-01	21170000
2007-04-01	21519000
2007-07-01	21621000
2007-10-01	21952000
2008-01-01	21932000
2008-04-01	22265000
2008-07-01	22150000
2008-10-01	22575000
2009-01-01	22486000
2009-04-01	22850000
2009-07-01	22684000
2009-10-01	22912000
2010-01-01	23147000
2010-04-01	23441000
2010-07-01	23540000
2010-10-01	23676000
2011-01-01	23931000
2011-04-01	24150000
2011-07-01	24122000
2011-10-01	24420000
2012-01-01	24868000
2012-04-01	24996000
2012-07-01	24867000
2012-10-01	25321000
2013-01-01	25519000
2013-04-01	25619000
2013-07-01	25695000
2013-10-01	25930000
2014-01-01	26078000
2014-04-01	26439000
2014-07-01	26352000
2014-10-01	26772000
2015-01-01	26777000
2015-04-01	26967000
2015-07-01	27008000
2015-10-01	27408000
2016-01-01	27606000
2016-04-01	27752000
2016-07-01	27607000
2016-10-01	28101000
2017-01-01	28373000
2017-04-01	28554000