Quarter	Persons
1998-04-01	19800
1999-04-01	16200
2000-04-01	11000
2001-04-01	15000
2002-04-01	11100
2003-04-01	25000
2004-04-01	20700
2005-04-01	25300
2006-04-01	21700
2007-04-01	20900
2008-04-01	21700
2009-04-01	27700
2010-01-01	32800
2010-04-01	22900
2010-07-01	31300
2010-10-01	19200
2011-01-01	24900
2011-04-01	15600
2011-07-01	30400
2011-10-01	26600
2012-01-01	24500
2012-04-01	18600
2012-07-01	28300
2012-10-01	25300
2013-01-01	24700
2013-04-01	25000
2013-07-01	33300
2013-10-01	24400
2014-01-01	25500
2014-04-01	22700
2014-07-01	36900
2014-10-01	20000
2015-01-01	19700
2015-04-01	17800
2015-07-01	33600
2015-10-01	33000
2016-01-01	19900
2016-04-01	21600
2016-07-01	36400
2016-10-01	26300
2017-01-01	21300
2017-04-01	20900
2017-07-01	31900
2017-10-01	21700
2018-01-01	25900
2018-04-01	17000