Quarter	Persons
1998-04-01	36700
1999-04-01	38600
2000-04-01	37500
2001-04-01	39600
2002-04-01	37800
2003-01-01	36000
2003-04-01	36000
2003-07-01	36000
2003-10-01	36000
2004-01-01	35400
2004-04-01	35400
2004-07-01	35400
2004-10-01	35400
2005-01-01	33400
2005-04-01	33400
2005-07-01	33400
2005-10-01	33400
2006-01-01	32600
2006-04-01	32600
2006-07-01	32600
2006-10-01	32600
2007-01-01	33000
2007-04-01	35200
2007-07-01	35100
2007-10-01	33900
2008-01-01	28400
2008-04-01	30100
2008-07-01	27000
2008-10-01	28800
2009-01-01	24900
2009-04-01	26200
2009-07-01	24000
2009-10-01	27900
2010-01-01	25500
2010-04-01	27900
2010-07-01	24500
2010-10-01	27900
2011-01-01	29300
2011-04-01	29200
2011-07-01	24600
2011-10-01	27200
2012-01-01	29700
2012-04-01	27500
2012-07-01	26800
2012-10-01	25200
2013-01-01	26300
2013-04-01	23100
2013-07-01	25000
2013-10-01	27600
2014-01-01	24400
2014-04-01	23600
2014-07-01	24300
2014-10-01	25300
2015-01-01	28500
2015-04-01	27600
2015-07-01	27100
2015-10-01	24100
2016-01-01	25300
2016-04-01	25700
2016-07-01	27400
2016-10-01	24700
2017-01-01	23700
2017-04-01	22700
2017-07-01	22100
2017-10-01	24000
2018-01-01	25200
2018-04-01	31200