Quarter Persons, Seasonally Adjusted 2005-01-01 18469623.216140600 2005-04-01 18382632.232874703 2005-07-01 18438122.605037900 2005-10-01 18643186.945946800 2006-01-01 18749912.241972000 2006-04-01 18826047.510116800 2006-07-01 19051284.924105700 2006-10-01 19121576.323805500 2007-01-01 19086596.271466002 2007-04-01 19229605.004753698 2007-07-01 19184419.332669200 2007-10-01 19334681.391111100 2008-01-01 19547175.930629298 2008-04-01 19807934.289966400 2008-07-01 19854791.808128800 2008-10-01 20058382.971275600 2009-01-01 20203128.811820902 2009-04-01 20403448.535933703 2009-07-01 20354622.722643398 2009-10-01 20418969.929602000 2010-01-01 20490500.173659902 2010-04-01 20665075.490878300 2010-07-01 20759441.551099300 2010-10-01 20875732.784362500 2011-01-01 21005953.600941602 2011-04-01 21121804.959043797 2011-07-01 21233680.455946800 2011-10-01 21201721.984067800 2012-01-01 21239587.505254600 2012-04-01 21474082.804849498 2012-07-01 21608198.410370200 2012-10-01 21630749.279525600 2013-01-01 21793881.475273598 2013-04-01 21952568.939512000 2013-07-01 21842449.740706300 2013-10-01 22121594.844508100 2014-01-01 22066560.977490300 2014-04-01 22074630.318193100 2014-07-01 22098115.790856300 2014-10-01 22273067.913460303 2015-01-01 22297231.908170402 2015-04-01 22480066.046487100 2015-07-01 22478277.727030102 2015-10-01 22766946.318312400 2016-01-01 22818786.059621200 2016-04-01 22883092.304588400 2016-07-01 22920177.300770800 2016-10-01 23108973.335019700 2017-01-01 23024346.140533100 2017-04-01 23007629.753409700 2017-07-01 23122628.609490197 2017-10-01 23257713.496567000 2018-01-01 23328567.522023898 2018-04-01 23533782.055913802