Quarter	Persons, Seasonally Adjusted
2005-01-01	37404000
2005-04-01	37858000
2005-07-01	38252000
2005-10-01	38500000
2006-01-01	38876000
2006-04-01	39367000
2006-07-01	39565000
2006-10-01	39906000
2007-01-01	40355000
2007-04-01	40786000
2007-07-01	41107000
2007-10-01	41453000
2008-01-01	41775000
2008-04-01	41980000
2008-07-01	42154000
2008-10-01	42293000
2009-01-01	42258000
2009-04-01	42190000
2009-07-01	42291000
2009-10-01	42478000
2010-01-01	42716000
2010-04-01	43079000
2010-07-01	43278000
2010-10-01	43423000
2011-01-01	43942000
2011-04-01	44367000
2011-07-01	44562000
2011-10-01	44890000
2012-01-01	45301000
2012-04-01	45660000
2012-07-01	46082000
2012-10-01	46385000
2013-01-01	46337000
2013-04-01	46532000
2013-07-01	46954000
2013-10-01	47163000
2014-01-01	47455000
2014-04-01	47947000
2014-07-01	48355000
2014-10-01	48559000
2015-01-01	48830000
2015-04-01	49203000
2015-07-01	49402000
2015-10-01	49666000
2016-01-01	50212000
2016-04-01	50608000
2016-07-01	50984000
2016-10-01	51314000
2017-01-01	51695000
2017-04-01	52224000