Quarter Persons 1999-04-01 21400 2000-04-01 21800 2001-04-01 21300 2002-04-01 21700 2003-01-01 22300 2003-04-01 22300 2003-07-01 22300 2003-10-01 22300 2004-01-01 22600 2004-04-01 22600 2004-07-01 22600 2004-10-01 22600 2005-01-01 23100 2005-04-01 23100 2005-07-01 23100 2005-10-01 23100 2006-01-01 24700 2006-04-01 24700 2006-07-01 24700 2006-10-01 24700 2007-01-01 24200 2007-04-01 24400 2007-07-01 24500 2007-10-01 24300 2008-01-01 22600 2008-04-01 24500 2008-07-01 23700 2008-10-01 24000 2009-01-01 24500 2009-04-01 24800 2009-07-01 24500 2009-10-01 24900 2010-01-01 25900 2010-04-01 25500 2010-07-01 25900 2010-10-01 26100 2011-01-01 26900 2011-04-01 26900 2011-07-01 26500 2011-10-01 27200 2012-01-01 28000 2012-04-01 28200 2012-07-01 27700 2012-10-01 28000 2013-01-01 28600 2013-04-01 28600 2013-07-01 28400 2013-10-01 28500 2014-01-01 29600 2014-04-01 29200 2014-07-01 29000 2014-10-01 29700 2015-01-01 31300 2015-04-01 31300 2015-07-01 31300 2015-10-01 31300 2016-01-01 32400 2016-04-01 32400 2016-07-01 32400 2016-10-01 32400 2017-01-01 33700 2017-04-01 33500 2017-07-01 34100 2017-10-01 34100 2018-01-01 35100 2018-04-01 35100