Quarter	Persons
2005-01-01	20.1
2005-04-01	21.0
2005-07-01	22.3
2005-10-01	21.4
2006-01-01	23.0
2006-04-01	24.2
2006-07-01	24.4
2006-10-01	23.1
2007-01-01	23.0
2007-04-01	25.9
2007-07-01	25.9
2007-10-01	24.3
2008-01-01	25.6
2008-04-01	26.2
2008-07-01	27.5
2008-10-01	24.7
2009-01-01	22.0
2009-04-01	20.9
2009-07-01	19.7
2009-10-01	20.0
2010-01-01	17.9
2010-04-01	16.2
2010-07-01	18.6
2010-10-01	20.4
2011-01-01	18.8
2011-04-01	18.2
2011-07-01	19.9
2011-10-01	19.1
2012-01-01	19.2
2012-04-01	21.6
2012-07-01	22.3
2012-10-01	22.9
2013-01-01	23.5
2013-04-01	24.1
2013-07-01	25.9
2013-10-01	24.9
2014-01-01	25.9
2014-04-01	26.5
2014-07-01	30.0
2014-10-01	28.1
2015-01-01	26.4
2015-04-01	27.9
2015-07-01	28.6
2015-10-01	30.5
2016-01-01	29.0
2016-04-01	29.3
2016-07-01	32.1
2016-10-01	30.6
2017-01-01	29.3
2017-04-01	31.6
2017-07-01	31.1
2017-10-01	29.5
2018-01-01	30.0
2018-04-01	31.1