Quarter	Persons, Seasonally Adjusted
2005-01-01	18110963.758340300
2005-04-01	18174389.267441400
2005-07-01	18240380.798165500
2005-10-01	18315566.176052798
2006-01-01	18425890.159781200
2006-04-01	18516659.528030798
2006-07-01	18562173.794588800
2006-10-01	18645376.517599203
2007-01-01	18562829.812939200
2007-04-01	18685810.318219800
2007-07-01	18712021.393093900
2007-10-01	18756238.475747100
2008-01-01	18679472.263705300
2008-04-01	18685440.028407898
2008-07-01	18768100.252187600
2008-10-01	18742787.455699198
2009-01-01	18730459.571767397
2009-04-01	18792634.786597900
2009-07-01	18684624.154914100
2009-10-01	18982881.486720600
2010-01-01	18560017.893185100
2010-04-01	18488644.151935200
2010-07-01	18502442.361203200
2010-10-01	18598795.593676500
2011-01-01	18700599.073509797
2011-04-01	18726050.860548100
2011-07-01	18824702.306599900
2011-10-01	18823047.759342200
2012-01-01	18709771.822138400
2012-04-01	18790561.509611998
2012-07-01	18816864.213013200
2012-10-01	18858902.455236398
2013-01-01	18961871.722527000
2013-04-01	18999009.648892700
2013-07-01	19018238.153451600
2013-10-01	19034380.475128700
2014-01-01	19078098.203847800
2014-04-01	19081309.031469900
2014-07-01	19123259.448972702
2014-10-01	19151433.315709602
2015-01-01	19116130.275468600
2015-04-01	19183549.834115300
2015-07-01	19144119.482266400
2015-10-01	19321200.408149700
2016-01-01	19488269.944359400
2016-04-01	19492797.340465000
2016-07-01	19571739.055869300
2016-10-01	19578593.659306303
2017-01-01	19509839.046169400
2017-04-01	19571568.250250302
2017-07-01	19657283.162060898
2017-10-01	19620209.541519403
2018-01-01	19551616.200047903
2018-04-01	19536109.068691900