Quarter	Persons
1998-04-01	9100
1999-01-01	7000
1999-04-01	8400
1999-07-01	8300
1999-10-01	7500
2000-01-01	5900
2000-04-01	6300
2000-07-01	5300
2000-10-01	5500
2001-01-01	6000
2001-04-01	7400
2001-07-01	3800
2001-10-01	7000
2002-01-01	9000
2002-04-01	6400
2002-07-01	8200
2002-10-01	7900
2003-01-01	5700
2003-04-01	4000
2003-07-01	6100
2003-10-01	7500
2004-01-01	7600
2004-04-01	9300
2004-07-01	5600
2004-10-01	6300
2005-01-01	9000
2005-04-01	11000
2005-07-01	9200
2005-10-01	9400
2006-01-01	9000
2006-04-01	11200
2006-07-01	11300
2006-10-01	11600
2007-01-01	10200
2007-04-01	7200
2007-07-01	11300
2007-10-01	10400
2008-01-01	9400
2008-04-01	9600
2008-07-01	11300
2008-10-01	10400
2009-01-01	15900
2009-04-01	14400
2009-07-01	14000
2009-10-01	14600
2010-01-01	10300
2010-04-01	13300
2010-07-01	16400
2010-10-01	13400
2011-01-01	17600
2011-04-01	10000
2011-07-01	12500
2011-10-01	9800
2012-01-01	12800
2012-04-01	9500
2012-07-01	15600
2012-10-01	14900
2013-01-01	21300
2013-04-01	17400
2013-07-01	20300
2013-10-01	16700
2014-01-01	23200
2014-04-01	14500
2014-07-01	16300
2014-10-01	25200
2015-01-01	25900
2015-04-01	26500
2015-07-01	20400
2015-10-01	20500
2016-01-01	17700
2016-04-01	23200
2016-07-01	20400
2016-10-01	21300
2017-01-01	20100
2017-04-01	19800
2017-07-01	24100
2017-10-01	23300
2018-01-01	18700
2018-04-01	19800