Quarter	Persons
1998-01-01	9300
1998-04-01	9300
1998-07-01	9000
1998-10-01	9000
1999-01-01	11300
1999-04-01	13400
1999-07-01	12500
1999-10-01	14400
2000-01-01	16200
2000-04-01	14800
2000-07-01	13000
2000-10-01	12300
2001-01-01	14100
2001-04-01	12300
2001-07-01	12600
2001-10-01	13400
2002-01-01	14200
2002-04-01	11700
2002-07-01	10600
2002-10-01	11400
2003-01-01	13400
2003-04-01	13400
2003-07-01	15000
2003-10-01	16500
2004-01-01	19800
2004-04-01	18700
2004-07-01	18000
2004-10-01	18000
2005-01-01	17800
2005-04-01	18600
2005-07-01	18100
2005-10-01	18100
2006-01-01	21500
2006-04-01	21100
2006-07-01	21400
2006-10-01	22200
2007-01-01	20000
2007-04-01	20700
2007-07-01	19100
2007-10-01	18000
2008-01-01	17000
2008-04-01	16700
2008-07-01	13700
2008-10-01	15000
2009-01-01	21200
2009-04-01	22900
2009-07-01	28300
2009-10-01	27400
2010-01-01	33200
2010-04-01	28200
2010-07-01	27300
2010-10-01	27700
2011-01-01	29000
2011-04-01	29200
2011-07-01	25800
2011-10-01	22300
2012-01-01	27800
2012-04-01	26500
2012-07-01	23200
2012-10-01	27500
2013-01-01	30200
2013-04-01	25700
2013-07-01	22800
2013-10-01	22100
2014-01-01	26600
2014-04-01	18300
2014-07-01	21000
2014-10-01	20000
2015-01-01	20300
2015-04-01	18300
2015-07-01	16800
2015-10-01	19000
2016-01-01	22800
2016-04-01	18100
2016-07-01	16800
2016-10-01	14300
2017-01-01	12100
2017-04-01	10500
2017-07-01	8600
2017-10-01	7400
2018-01-01	8600
2018-04-01	9000