Quarter Persons, Seasonally Adjusted 1999-07-01 15345181.781176200 1999-10-01 15604586.397758199 2000-01-01 15717454.923968801 2000-04-01 15862375.191322500 2000-07-01 16023160.469047400 2000-10-01 16066009.415661300 2001-01-01 16010504.693558000 2001-04-01 16240070.664872800 2001-07-01 16303690.932243100 2001-10-01 16395300.375992702 2002-01-01 16529668.903134702 2002-04-01 16610206.843584802 2002-07-01 16689076.555556102 2002-10-01 16690681.031057699 2003-01-01 16731879.700651502 2003-04-01 16703235.874776000 2003-07-01 16724557.033349501 2003-10-01 16785527.391223002 2004-01-01 17008444.048819900 2004-04-01 17004010.834694400 2004-07-01 17009115.126592300 2004-10-01 17049263.323226700 2005-01-01 17082793.793291200 2005-04-01 17146625.909304500 2005-07-01 17211974.749462600 2005-10-01 17357205.547941700 2006-01-01 17478911.251121400 2006-04-01 17566853.064978800 2006-07-01 17650376.867057300 2006-10-01 17674125.483509097 2007-01-01 17744998.187374200 2007-04-01 17812902.633667800 2007-07-01 17888487.079794500 2007-10-01 17968112.099163402 2008-01-01 18048303.443878700 2008-04-01 18101991.434479803 2008-07-01 18118638.947286500 2008-10-01 18117032.841021597 2009-01-01 17989840.264154300 2009-04-01 17927703.315822000 2009-07-01 17909078.310838900 2009-10-01 17942544.775851500 2010-01-01 18000897.216331700 2010-04-01 18069631.858156500 2010-07-01 18081168.757696900 2010-10-01 18096935.501148200 2011-01-01 18129401.038386800 2011-04-01 18225090.536641600 2011-07-01 18200663.420505000 2011-10-01 18235478.337799900 2012-01-01 18230557.140386500 2012-04-01 18217970.680689000 2012-07-01 18220080.877890598 2012-10-01 18145924.634367100 2013-01-01 18101790.009469602 2013-04-01 18165596.260509700 2013-07-01 18190243.616900798 2013-10-01 18235636.779786497 2014-01-01 18297987.428071000 2014-04-01 18249527.446483698 2014-07-01 18253873.701503900 2014-10-01 18223478.090608100 2015-01-01 18207667.703435400 2015-04-01 18157709.395385798 2015-07-01 18149983.875372898 2015-10-01 18125805.692472600 2016-01-01 18060019.614941500 2016-04-01 17994945.608524997 2016-07-01 17991210.898295000 2016-10-01 17968923.878238500 2017-01-01 17979380.090057798 2017-04-01 17958410.413133800 2017-07-01 17958636.348804800 2017-10-01 17925239.814670200 2018-01-01 17923857.000310503 2018-04-01 17876357.421779400 2018-07-01 17829319.750769700