Quarter	Persons
1998-04-01	11000
1999-04-01	8900
2000-04-01	7900
2001-04-01	9400
2002-04-01	8800
2003-01-01	11700
2003-04-01	10700
2003-07-01	11000
2003-10-01	11800
2004-01-01	13300
2004-04-01	11900
2004-07-01	12900
2004-10-01	14100
2005-01-01	13500
2005-04-01	12200
2005-07-01	12700
2005-10-01	13700
2006-01-01	14300
2006-04-01	11800
2006-07-01	11900
2006-10-01	12200
2007-01-01	13500
2007-04-01	12300
2007-07-01	13200
2007-10-01	14700
2008-01-01	15200
2008-04-01	13400
2008-07-01	14700
2008-10-01	14600
2009-01-01	15700
2009-04-01	15500
2009-07-01	14800
2009-10-01	14400
2010-01-01	15000
2010-04-01	14700
2010-07-01	15400
2010-10-01	14100
2011-01-01	14100
2011-04-01	13700
2011-07-01	15500
2011-10-01	15900
2012-01-01	14900
2012-04-01	13000
2012-07-01	14200
2012-10-01	15700
2013-01-01	15600
2013-04-01	13100
2013-07-01	12700
2013-10-01	14900
2014-01-01	14700
2014-04-01	10200
2014-07-01	11800
2014-10-01	12200
2015-01-01	12600
2015-04-01	9500
2015-07-01	11000
2015-10-01	11600
2016-01-01	11700
2016-04-01	9800
2016-07-01	9400
2016-10-01	9700
2017-01-01	11200
2017-04-01	10100
2017-07-01	11600
2017-10-01	12400
2018-01-01	12400
2018-04-01	12100