Quarter	Persons, Seasonally Adjusted
2006-01-01	16078301.263456200
2006-04-01	16128414.086832799
2006-07-01	16207233.234867102
2006-10-01	16361851.414843801
2007-01-01	16392868.580643099
2007-04-01	16469106.821130500
2007-07-01	16549739.950313099
2007-10-01	16543384.647913300
2008-01-01	16718200.700949900
2008-04-01	16792448.474821404
2008-07-01	16849860.304932803
2008-10-01	17025690.519295800
2009-01-01	16948227.962955200
2009-04-01	17121352.139801797
2009-07-01	17320482.721976300
2009-10-01	17378737.175266698
2010-01-01	17532770.474066000
2010-04-01	17633265.787664898
2010-07-01	17598370.001760200
2010-10-01	17662293.736508900
2011-01-01	18116221.886959200
2011-04-01	18158780.724159900
2011-07-01	18267756.885331300
2011-10-01	18295940.503549600
2012-01-01	18219814.446952000
2012-04-01	18399796.497065198
2012-07-01	18505239.714523300
2012-10-01	18853249.341459600
2013-01-01	18799148.706136398
2013-04-01	18923525.881946400
2013-07-01	18997888.939663900
2013-10-01	19026236.472253300
2014-01-01	19406749.057044900
2014-04-01	19530195.873236200
2014-07-01	19579201.394060900
2014-10-01	19672353.675658000
2015-01-01	19751566.899740600
2015-04-01	19808807.353162903
2015-07-01	20030019.283713397
2015-10-01	20050606.463383198
2016-01-01	20141544.780297700
2016-04-01	20328151.430685700
2016-07-01	20322918.413065903
2016-10-01	20535685.375950802
2017-01-01	20707733.152142300
2017-04-01	20782516.175972200
2017-07-01	20962491.605410200
2017-10-01	21015759.066475302
2018-01-01	20980826.526568398
2018-04-01	21029963.312255498