Quarter	Persons
1998-01-01	31600
1998-04-01	54800
1998-07-01	27900
1998-10-01	22300
1999-01-01	33000
1999-04-01	56900
1999-07-01	23700
1999-10-01	25500
2000-01-01	38300
2000-04-01	56700
2000-07-01	24100
2000-10-01	24900
2001-01-01	31400
2001-04-01	52500
2001-07-01	23100
2001-10-01	24200
2002-01-01	33900
2002-04-01	57500
2002-07-01	23100
2002-10-01	24000
2003-01-01	37300
2003-04-01	54100
2003-07-01	26200
2003-10-01	23600
2004-01-01	35100
2004-04-01	52300
2004-07-01	25600
2004-10-01	25700
2005-01-01	32600
2005-04-01	53000
2005-07-01	23700
2005-10-01	22700
2006-01-01	33200
2006-04-01	50900
2006-07-01	22100
2006-10-01	19000
2007-01-01	30200
2007-04-01	42100
2007-07-01	18000
2007-10-01	20400
2008-01-01	25600
2008-04-01	47700
2008-07-01	19500
2008-10-01	22700
2009-01-01	34200
2009-04-01	61900
2009-07-01	26900
2009-10-01	29700
2010-01-01	40200
2010-04-01	57300
2010-07-01	24700
2010-10-01	28200
2011-01-01	33300
2011-04-01	54400
2011-07-01	26800
2011-10-01	25200
2012-01-01	34300
2012-04-01	48400
2012-07-01	23500
2012-10-01	23900
2013-01-01	37000
2013-04-01	59800
2013-07-01	26200
2013-10-01	25100
2014-01-01	38700
2014-04-01	53300
2014-07-01	26000
2014-10-01	30300
2015-01-01	41100
2015-04-01	64300
2015-07-01	29000
2015-10-01	26200
2016-01-01	36900
2016-04-01	51700
2016-07-01	24600
2016-10-01	24800
2017-01-01	34400
2017-04-01	52900
2017-07-01	25200
2017-10-01	21700
2018-01-01	30400
2018-04-01	39900