Quarter Persons, Seasonally Adjusted 1999-04-01 557496.86467969100 1999-07-01 554302.48202182810 1999-10-01 554504.75532760100 2000-01-01 553717.03846509600 2000-04-01 551508.21225114310 2000-07-01 553508.05985944390 2000-10-01 553666.68942431790 2001-01-01 555154.33848365400 2001-04-01 557238.42673839200 2001-07-01 552989.14867335700 2001-10-01 555418.08610459800 2002-01-01 554565.88228732400 2002-04-01 556943.54316434500 2002-07-01 562404.43173040900 2002-10-01 563186.14281792200 2003-01-01 564408.11551800800 2003-04-01 562989.82658030600 2003-07-01 561923.86826970090 2003-10-01 564478.18963198490 2004-01-01 565323.79475791900 2004-04-01 567239.69375947900 2004-07-01 565805.49845350000 2004-10-01 558531.01302910200 2005-01-01 555823.87265897400 2005-04-01 550344.43741052200 2005-07-01 549429.71023131000 2005-10-01 550401.97969919300 2006-01-01 549329.67482746400 2006-04-01 553140.11570991700 2006-07-01 548638.28445602800 2006-10-01 549091.92500659010 2007-01-01 506297.23257593000 2007-04-01 502960.11008108800 2007-07-01 509356.80604725296 2007-10-01 511585.85129573000 2008-01-01 515143.04742319096 2008-04-01 522106.81898592600 2008-07-01 522575.94937275804 2008-10-01 527574.18421812390 2009-01-01 530315.23509999600 2009-04-01 533970.64166310900 2009-07-01 536637.48600815200 2009-10-01 542376.63722874200 2010-01-01 546363.08953836000 2010-04-01 546222.00656545790 2010-07-01 549666.21201189900 2010-10-01 546848.69188428400 2011-01-01 548939.69793998100 2011-04-01 546262.05852387200 2011-07-01 547280.59423257400 2011-10-01 546217.64930357400 2012-01-01 544516.73523396200 2012-04-01 548946.71637720390 2012-07-01 544802.73245161800 2012-10-01 542733.81593721700 2013-01-01 537555.91839903500 2013-04-01 528179.61514577700 2013-07-01 531936.92947873600 2013-10-01 531527.53697645200 2014-01-01 533116.14147724300 2014-04-01 540980.20292267900 2014-07-01 535302.79080963390 2014-10-01 540300.86479044400 2015-01-01 542346.93080114900 2015-04-01 542211.82817874300 2015-07-01 542995.31955405300 2015-10-01 535745.92146605510 2016-01-01 534835.33619485690 2016-04-01 524663.78706097500 2016-07-01 525906.10568664000 2016-10-01 529694.77105752800 2017-01-01 524303.33820683200 2017-04-01 533209.12343056000 2017-07-01 529997.19186464700 2017-10-01 527090.34649796110 2018-01-01 530318.46095668000 2018-04-01 524937.95034096400