Quarterly Persons, Seasonally Adjusted
2005-01-01 19115000
2005-04-01 19163000
2005-07-01 19202000
2005-10-01 19224000
2006-01-01 19138000
2006-04-01 19184000
2006-07-01 19165000
2006-10-01 19251000
2007-01-01 19273000
2007-04-01 19169000
2007-07-01 19173000
2007-10-01 19231000
2008-01-01 19144000
2008-04-01 19091000
2008-07-01 18836000
2008-10-01 18659000
2009-01-01 18422000
2009-04-01 18166000
2009-07-01 17836000
2009-10-01 17601000
2010-01-01 17542000
2010-04-01 17349000
2010-07-01 17416000
2010-10-01 17283000
2011-01-01 17260000
2011-04-01 17277000
2011-07-01 17248000
2011-10-01 17240000
2012-01-01 17290000
2012-04-01 17352000
2012-07-01 17389000
2012-10-01 17327000
2013-01-01 17383000
2013-04-01 17424000
2013-07-01 17559000
2013-10-01 17604000
2014-01-01 17545000
2014-04-01 17712000
2014-07-01 17676000
2014-10-01 17739000
2015-01-01 17742000
2015-04-01 17810000
2015-07-01 17846000
2015-10-01 17980000
2016-01-01 18080000
2016-04-01 17978000
2016-07-01 18182000
2016-10-01 18087000
2017-01-01 18245000
2017-04-01 18202000