Quarter	Persons
1998-01-01	11800
1999-01-01	10000
1999-04-01	10800
1999-07-01	10900
1999-10-01	9700
2000-01-01	14000
2000-04-01	9300
2000-07-01	8500
2000-10-01	9800
2001-01-01	10200
2001-04-01	9400
2001-07-01	7700
2001-10-01	10400
2002-01-01	12100
2002-04-01	12000
2002-07-01	10100
2002-10-01	11500
2003-01-01	14000
2003-04-01	9600
2003-07-01	10900
2003-10-01	12000
2004-01-01	9100
2004-04-01	7700
2004-07-01	8900
2004-10-01	8400
2005-01-01	7800
2005-04-01	7900
2005-07-01	8100
2005-10-01	9900
2006-01-01	10100
2006-04-01	10600
2006-07-01	8900
2006-10-01	9700
2007-01-01	8300
2007-04-01	10100
2007-07-01	4700
2007-10-01	5700
2008-01-01	4100
2008-04-01	5800
2008-07-01	4000
2008-10-01	4000
2009-01-01	5500
2009-04-01	5500
2009-07-01	7800
2009-10-01	7300
2010-01-01	6700
2010-04-01	7000
2010-07-01	6200
2010-10-01	7000
2011-01-01	10700
2011-04-01	10000
2011-07-01	9900
2011-10-01	11300
2012-01-01	9400
2012-04-01	10300
2012-07-01	10100
2012-10-01	10000
2013-01-01	11900
2013-04-01	10200
2013-07-01	12500
2013-10-01	10600
2014-01-01	13300
2014-04-01	12200
2014-07-01	11000
2014-10-01	14800
2015-01-01	16500
2015-04-01	15100
2015-07-01	17600
2015-10-01	18300
2016-01-01	19100
2016-04-01	21100
2016-07-01	17400
2016-10-01	19000
2017-01-01	18200
2017-04-01	17200
2017-07-01	15800
2017-10-01	13700
2018-01-01	14600
2018-04-01	15700