Quarter	Persons
1999-04-01	600
2000-04-01	300
2001-04-01	500
2002-04-01	1300
2003-01-01	1700
2003-04-01	1100
2003-07-01	1200
2003-10-01	1300
2004-01-01	1100
2004-04-01	1300
2004-07-01	1000
2004-10-01	0
2005-01-01	1100
2005-04-01	0
2005-07-01	0
2005-10-01	1200
2006-01-01	0
2006-04-01	1300
2006-07-01	1000
2006-10-01	1000
2007-01-01	1000
2007-04-01	1000
2007-07-01	0
2007-10-01	0
2008-01-01	1200
2008-04-01	1000
2008-07-01	1200
2008-10-01	2400
2009-01-01	5500
2009-04-01	4900
2009-07-01	3300
2009-10-01	4200
2010-01-01	4600
2010-04-01	3900
2010-07-01	3300
2010-10-01	5000
2011-01-01	4500
2011-04-01	3900
2011-07-01	2400
2011-10-01	2400
2012-01-01	3300
2012-04-01	3000
2012-07-01	2400
2012-10-01	2100
2013-01-01	2700
2013-04-01	2700
2013-07-01	2600
2013-10-01	2200
2014-01-01	3000
2014-04-01	2300
2014-07-01	1700
2014-10-01	1800
2015-01-01	1800
2015-04-01	1600
2015-07-01	1400
2015-10-01	1400
2016-01-01	2000
2016-04-01	1300
2016-07-01	1200
2016-10-01	1100
2017-01-01	1200
2017-04-01	1200
2017-07-01	700
2017-10-01	1400
2018-01-01	1800
2018-04-01	1800