Quarter	Persons
1998-01-01	13000
1998-04-01	12900
1998-07-01	11500
1998-10-01	10400
1999-01-01	10500
1999-04-01	15100
1999-07-01	13800
1999-10-01	12000
2000-01-01	13400
2000-04-01	12600
2000-07-01	10400
2000-10-01	11800
2001-01-01	11500
2001-04-01	8100
2001-07-01	11600
2001-10-01	11100
2002-01-01	12600
2002-04-01	11100
2002-07-01	12900
2002-10-01	12900
2003-01-01	11700
2003-04-01	17200
2003-07-01	16600
2003-10-01	20500
2004-01-01	17000
2004-04-01	21400
2004-07-01	19800
2004-10-01	21700
2005-01-01	21700
2005-04-01	21300
2005-07-01	25100
2005-10-01	26300
2006-01-01	25500
2006-04-01	23900
2006-07-01	25700
2006-10-01	27500
2007-01-01	24600
2007-04-01	27400
2007-07-01	26600
2007-10-01	25300
2008-01-01	27800
2008-04-01	29800
2008-07-01	25300
2008-10-01	25000
2009-01-01	26800
2009-04-01	30500
2009-07-01	33900
2009-10-01	31900
2010-01-01	35800
2010-04-01	37500
2010-07-01	38300
2010-10-01	37900
2011-01-01	42500
2011-04-01	47600
2011-07-01	44700
2011-10-01	45900
2012-01-01	48300
2012-04-01	53800
2012-07-01	52700
2012-10-01	63800
2013-01-01	58900
2013-04-01	62100
2013-07-01	54900
2013-10-01	55600
2014-01-01	64800
2014-04-01	61500
2014-07-01	55100
2014-10-01	64000
2015-01-01	61600
2015-04-01	56000
2015-07-01	55500
2015-10-01	57100
2016-01-01	59900
2016-04-01	55900
2016-07-01	49100
2016-10-01	51100
2017-01-01	49300
2017-04-01	39600
2017-07-01	36100
2017-10-01	35300
2018-01-01	34300
2018-04-01	31100