Quarter	Persons
1999-04-01	17187900
2000-04-01	17221800
2001-04-01	17371400
2002-04-01	17458900
2003-04-01	17644100
2004-04-01	17578800
2005-01-01	18183500
2005-04-01	18112600
2005-07-01	18244200
2005-10-01	18301000
2006-01-01	18429600
2006-04-01	18484200
2006-07-01	18599500
2006-10-01	18636700
2007-01-01	18475000
2007-04-01	18594600
2007-07-01	18780300
2007-10-01	18866900
2008-01-01	18581400
2008-04-01	18550800
2008-07-01	18816400
2008-10-01	18927200
2009-01-01	18670000
2009-04-01	18734300
2009-07-01	18686300
2009-10-01	19099900
2010-01-01	18503800
2010-04-01	18475500
2010-07-01	18506100
2010-10-01	18664500
2011-01-01	18604000
2011-04-01	18704900
2011-07-01	18871800
2011-10-01	18893800
2012-01-01	18604200
2012-04-01	18780300
2012-07-01	18877600
2012-10-01	18913900
2013-01-01	18909900
2013-04-01	19013300
2013-07-01	19055000
2013-10-01	19035400
2014-01-01	19037100
2014-04-01	19084100
2014-07-01	19139600
2014-10-01	19173300
2015-01-01	19140800
2015-04-01	19159800
2015-07-01	19125900
2015-10-01	19338400
2016-01-01	19541000
2016-04-01	19391000
2016-07-01	19578000
2016-10-01	19621300
2017-01-01	19534600
2017-04-01	19412900
2017-07-01	19709000
2017-10-01	19702300
2018-01-01	19571300
2018-04-01	19399800