Quarter	Persons
1998-01-01	4600
1999-01-01	2800
1999-04-01	2100
1999-07-01	1600
1999-10-01	2300
2000-01-01	5100
2000-04-01	3000
2000-07-01	3300
2000-10-01	5000
2001-01-01	4400
2001-04-01	4100
2001-07-01	4800
2001-10-01	2700
2002-01-01	3500
2002-04-01	3000
2002-07-01	5100
2002-10-01	4300
2003-01-01	3800
2003-04-01	6400
2003-07-01	4300
2003-10-01	4400
2004-01-01	4200
2004-04-01	3000
2004-07-01	2100
2004-10-01	2800
2005-01-01	3800
2005-04-01	2900
2005-07-01	3600
2005-10-01	2600
2006-01-01	3400
2006-04-01	3100
2006-07-01	2400
2006-10-01	3000
2007-01-01	4400
2007-04-01	5800
2007-07-01	4600
2007-10-01	3600
2008-01-01	4000
2008-04-01	3800
2008-07-01	2600
2008-10-01	4600
2009-01-01	3800
2009-04-01	4900
2009-07-01	3800
2009-10-01	2300
2010-01-01	3700
2010-04-01	2700
2010-07-01	3600
2010-10-01	2600
2011-01-01	4400
2011-04-01	4500
2011-07-01	2800
2011-10-01	4800
2012-01-01	4200
2012-04-01	4800
2012-07-01	5000
2012-10-01	5200
2013-01-01	5800
2013-04-01	5200
2013-07-01	5500
2013-10-01	7700
2014-01-01	5000
2014-04-01	4900
2014-07-01	5800
2014-10-01	6700
2015-01-01	7900
2015-04-01	7100
2015-07-01	6100
2015-10-01	8700
2016-01-01	8700
2016-04-01	8700
2016-07-01	9100
2016-10-01	9500
2017-01-01	10100
2017-04-01	10400
2017-07-01	7700
2017-10-01	10000
2018-01-01	8800
2018-04-01	9800