Quarter	Persons
1999-01-01	20100
1999-04-01	22100
1999-07-01	22000
1999-10-01	22000
2000-01-01	20000
2000-04-01	17700
2000-07-01	19000
2000-10-01	18200
2001-01-01	18500
2001-04-01	16200
2001-07-01	18500
2001-10-01	22800
2002-01-01	19200
2002-04-01	15500
2002-07-01	18000
2002-10-01	16900
2003-01-01	18800
2003-04-01	14600
2003-07-01	17800
2003-10-01	18300
2004-01-01	19200
2004-04-01	15300
2004-07-01	16500
2004-10-01	20800
2005-01-01	19000
2005-04-01	12500
2005-07-01	18300
2005-10-01	19200
2006-01-01	18200
2006-04-01	15700
2006-07-01	12700
2006-10-01	12200
2007-01-01	11600
2007-04-01	8100
2007-07-01	10400
2007-10-01	13100
2008-01-01	12800
2008-04-01	9700
2008-07-01	11600
2008-10-01	11500
2009-01-01	13000
2009-04-01	12100
2009-07-01	15200
2009-10-01	14600
2010-01-01	14100
2010-04-01	14800
2010-07-01	12900
2010-10-01	14300
2011-01-01	15300
2011-04-01	10800
2011-07-01	12900
2011-10-01	15800
2012-01-01	14700
2012-04-01	12200
2012-07-01	17600
2012-10-01	18700
2013-01-01	16600
2013-04-01	18000
2013-07-01	15100
2013-10-01	13800
2014-01-01	15200
2014-04-01	13300
2014-07-01	13900
2014-10-01	14400
2015-01-01	12700
2015-04-01	11300
2015-07-01	10200
2015-10-01	12800
2016-01-01	11200
2016-04-01	8900
2016-07-01	10100
2016-10-01	11100
2017-01-01	8100
2017-04-01	7800
2017-07-01	9300
2017-10-01	9400
2018-01-01	7900
2018-04-01	6500