Quarter	Persons
2005-01-01	65.1
2005-04-01	66.6
2005-07-01	67.6
2005-10-01	66.4
2006-01-01	65.7
2006-04-01	66.8
2006-07-01	66.9
2006-10-01	66.3
2007-01-01	66.6
2007-04-01	68.6
2007-07-01	69.8
2007-10-01	68.0
2008-01-01	67.3
2008-04-01	68.1
2008-07-01	67.6
2008-10-01	65.9
2009-01-01	60.8
2009-04-01	59.8
2009-07-01	59.5
2009-10-01	56.9
2010-01-01	54.1
2010-04-01	55.4
2010-07-01	57.6
2010-10-01	58.9
2011-01-01	58.3
2011-04-01	59.8
2011-07-01	60.8
2011-10-01	61.7
2012-01-01	60.2
2012-04-01	62.0
2012-07-01	63.6
2012-10-01	63.3
2013-01-01	62.7
2013-04-01	64.3
2013-07-01	66.1
2013-10-01	65.8
2014-01-01	64.9
2014-04-01	65.6
2014-07-01	68.5
2014-10-01	67.2
2015-01-01	66.9
2015-04-01	67.4
2015-07-01	68.9
2015-10-01	68.9
2016-01-01	68.6
2016-04-01	70.1
2016-07-01	70.9
2016-10-01	70.2
2017-01-01	69.1
2017-04-01	70.5
2017-07-01	71.3
2017-10-01	71.5
2018-01-01	71.1
2018-04-01	73.6