Quarter	Persons
2000-04-01	19683500
2001-04-01	19639500
2002-04-01	19635800
2003-04-01	19669200
2004-04-01	19470800
2005-01-01	19797900
2005-04-01	19669900
2005-07-01	19762300
2005-10-01	19692300
2006-01-01	19676400
2006-04-01	19683100
2006-07-01	19626800
2006-10-01	19501900
2007-01-01	19569400
2007-04-01	19602900
2007-07-01	19587400
2007-10-01	19529100
2008-01-01	19425600
2008-04-01	19402700
2008-07-01	19444100
2008-10-01	19425400
2009-01-01	19283800
2009-04-01	19207700
2009-07-01	19089200
2009-10-01	19170500
2010-01-01	18900400
2010-04-01	18771300
2010-07-01	18787100
2010-10-01	18727500
2011-01-01	18615200
2011-04-01	18612300
2011-07-01	18598000
2011-10-01	18593700
2012-01-01	18559000
2012-04-01	18476000
2012-07-01	18497800
2012-10-01	18485700
2013-01-01	18410100
2013-04-01	18350400
2013-07-01	18365100
2013-10-01	18312300
2014-01-01	18377100
2014-04-01	18372800
2014-07-01	18305600
2014-10-01	18344600
2015-01-01	18338700
2015-04-01	18280800
2015-07-01	18199200
2015-10-01	18236200
2016-01-01	18405100
2016-04-01	18319800
2016-07-01	18272800
2016-10-01	18342200
2017-01-01	18311300
2017-04-01	18346800
2017-07-01	18358000
2017-10-01	18297600
2018-01-01	18324500
2018-04-01	18310600