Quarter Persons, Seasonally Adjusted 2005-01-01 18987929.551648997 2005-04-01 19076375.928844202 2005-07-01 19054535.294593398 2005-10-01 19131659.224913400 2006-01-01 19194138.443143900 2006-04-01 19320319.037847100 2006-07-01 19341692.494243900 2006-10-01 19391850.024765100 2007-01-01 19495514.012756802 2007-04-01 19715172.475767300 2007-07-01 19726082.262597500 2007-10-01 19879731.248878400 2008-01-01 19865394.171175200 2008-04-01 20050748.614577900 2008-07-01 20070721.754429200 2008-10-01 20178035.459817700 2009-01-01 20134304.837240000 2009-04-01 20326251.685146000 2009-07-01 20368219.261809300 2009-10-01 20468324.215804700 2010-01-01 20423267.900298297 2010-04-01 20676649.394338097 2010-07-01 20664944.434529600 2010-10-01 20823338.270833902 2011-01-01 20944331.516707502 2011-04-01 21095588.123288800 2011-07-01 21110259.647325100 2011-10-01 21109020.712678600 2012-01-01 21260812.839505300 2012-04-01 21351214.112321902 2012-07-01 21422433.258609798 2012-10-01 21382539.789563000 2013-01-01 21474969.630780000 2013-04-01 21648392.092810400 2013-07-01 21663007.019570100 2013-10-01 21650531.256839500 2014-01-01 21750318.972618703 2014-04-01 21917312.357868100 2014-07-01 21907386.023291500 2014-10-01 22003982.646221600 2015-01-01 22098535.204693902 2015-04-01 22182864.525528000 2015-07-01 22281193.904510900 2015-10-01 22234306.365267200 2016-01-01 22399201.834467903 2016-04-01 22544517.978804700 2016-07-01 22439857.772629797 2016-10-01 22630322.414097603 2017-01-01 22677875.645018898 2017-04-01 22836168.889501600 2017-07-01 22917482.523591400 2017-10-01 22977872.941888100 2018-01-01 23090955.213327400 2018-04-01 23265106.986331600