Quarter	Persons, Seasonally Adjusted
2005-01-01	18285935.160666100
2005-04-01	18345304.814899597
2005-07-01	18401278.970020402
2005-10-01	18486381.054413900
2006-01-01	18602527.062464103
2006-04-01	18693090.677126300
2006-07-01	18753600.117601800
2006-10-01	18837882.142807900
2007-01-01	18768972.552119700
2007-04-01	18894563.227222100
2007-07-01	18919339.595205700
2007-10-01	18958524.625452500
2008-01-01	18894245.635655600
2008-04-01	18900327.430276700
2008-07-01	18987831.327292600
2008-10-01	18957295.606775100
2009-01-01	18955433.841058500
2009-04-01	19017980.617249303
2009-07-01	18907452.126410898
2009-10-01	19199133.415281300
2010-01-01	18785967.076071702
2010-04-01	18708515.123055097
2010-07-01	18732918.414240003
2010-10-01	18818899.386633300
2011-01-01	18937833.780621000
2011-04-01	18973774.939393800
2011-07-01	19062046.849698300
2011-10-01	19083444.430286903
2012-01-01	18976437.115898800
2012-04-01	19042737.606547598
2012-07-01	19090688.671447400
2012-10-01	19129836.606106200
2013-01-01	19242846.494129700
2013-04-01	19292635.875703300
2013-07-01	19314228.420600000
2013-10-01	19337389.209567100
2014-01-01	19391146.657650800
2014-04-01	19391889.589149500
2014-07-01	19443559.950862700
2014-10-01	19480803.802337103
2015-01-01	19450276.170987200
2015-04-01	19513756.550000902
2015-07-01	19488881.024493700
2015-10-01	19675286.254518200
2016-01-01	19843327.666462500
2016-04-01	19866700.736112100
2016-07-01	19943159.426609900
2016-10-01	19937712.170815400
2017-01-01	19880645.866418000
2017-04-01	19962228.051953200
2017-07-01	20052123.813922800
2017-10-01	20036402.267706000
2018-01-01	19974131.376264700
2018-04-01	19972275.536026300