Quarter	Persons
1999-04-01	16500
2000-04-01	16500
2001-04-01	17200
2002-04-01	17300
2003-01-01	15300
2003-04-01	15300
2003-07-01	15300
2003-10-01	15300
2004-01-01	14100
2004-04-01	14100
2004-07-01	14100
2004-10-01	14100
2005-01-01	14900
2005-04-01	14900
2005-07-01	14900
2005-10-01	14900
2006-01-01	14600
2006-04-01	14600
2006-07-01	14600
2006-10-01	14600
2007-01-01	14500
2007-04-01	14100
2007-07-01	14700
2007-10-01	13800
2008-01-01	14200
2008-04-01	16900
2008-07-01	15200
2008-10-01	16400
2009-01-01	15000
2009-04-01	19400
2009-07-01	18800
2009-10-01	19900
2010-01-01	13200
2010-04-01	13200
2010-07-01	15500
2010-10-01	14400
2011-01-01	16000
2011-04-01	12600
2011-07-01	15700
2011-10-01	14800
2012-01-01	15100
2012-04-01	13400
2012-07-01	17900
2012-10-01	18900
2013-01-01	14100
2013-04-01	15900
2013-07-01	14800
2013-10-01	18100
2014-01-01	17700
2014-04-01	14100
2014-07-01	15400
2014-10-01	15500
2015-01-01	23000
2015-04-01	21800
2015-07-01	26900
2015-10-01	21300
2016-01-01	18400
2016-04-01	20200
2016-07-01	23300
2016-10-01	20600
2017-01-01	21700
2017-04-01	19100
2017-07-01	23400
2017-10-01	20800
2018-01-01	22200
2018-04-01	19700