Quarterly 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