Quarter	Persons
1999-04-01	10300
2000-04-01	10500
2001-04-01	11400
2002-04-01	11800
2003-01-01	12300
2003-04-01	12600
2003-07-01	12700
2003-10-01	12700
2004-01-01	12900
2004-04-01	13100
2004-07-01	13300
2004-10-01	13400
2005-01-01	13600
2005-04-01	13800
2005-07-01	14100
2005-10-01	14300
2006-01-01	14700
2006-04-01	14800
2006-07-01	15100
2006-10-01	15300
2007-01-01	15300
2007-04-01	15400
2007-07-01	15800
2007-10-01	15900
2008-01-01	16000
2008-04-01	16000
2008-07-01	16300
2008-10-01	16600
2009-01-01	16700
2009-04-01	16700
2009-07-01	16500
2009-10-01	17000
2010-01-01	16900
2010-04-01	17000
2010-07-01	16900
2010-10-01	17400
2011-01-01	17000
2011-04-01	17300
2011-07-01	17400
2011-10-01	17700
2012-01-01	17600
2012-04-01	17700
2012-07-01	17900
2012-10-01	18000
2013-01-01	18000
2013-04-01	18300
2013-07-01	18400
2013-10-01	18300
2014-01-01	18500
2014-04-01	18600
2014-07-01	18700
2014-10-01	18500
2015-01-01	19000
2015-04-01	19300
2015-07-01	19300
2015-10-01	19300
2016-01-01	19300
2016-04-01	19500
2016-07-01	19600
2016-10-01	19500
2017-01-01	19600
2017-04-01	19900
2017-07-01	20300
2017-10-01	20000
2018-01-01	20200
2018-04-01	20200