Quarter Persons, Seasonally Adjusted 2006-01-01 19470399.323355000 2006-04-01 19791986.451366400 2006-07-01 19982730.824679397 2006-10-01 20293483.400599200 2007-01-01 20232510.964139200 2007-04-01 20210253.613100500 2007-07-01 20284700.443242000 2007-10-01 20147034.979518200 2008-01-01 20446048.566153098 2008-04-01 20719239.964350600 2008-07-01 20756130.300827600 2008-10-01 20611881.168668702 2009-01-01 20251568.201332700 2009-04-01 20394418.672078600 2009-07-01 20879660.200794797 2009-10-01 21264652.925793900 2010-01-01 21642447.490588400 2010-04-01 21939175.484123300 2010-07-01 22033337.346248202 2010-10-01 22395339.679040097 2011-01-01 23123133.501454700 2011-04-01 23240426.599466500 2011-07-01 23671593.119610600 2011-10-01 23764746.779468200 2012-01-01 23654926.868885998 2012-04-01 24040966.010313600 2012-07-01 24233455.448974498 2012-10-01 24754451.671825800 2013-01-01 24765311.950636500 2013-04-01 24863474.761432000 2013-07-01 24860325.735466400 2013-10-01 24932787.552465100 2014-01-01 25180147.434805800 2014-04-01 25273099.976071000 2014-07-01 25226411.513869103 2014-10-01 25349341.075254098 2015-01-01 25598661.257446400 2015-04-01 25756246.133828400 2015-07-01 26044012.569571200 2015-10-01 26143080.039154100 2016-01-01 26422803.658848500 2016-04-01 26544164.259587900 2016-07-01 26384036.034194000 2016-10-01 26536296.047369600 2017-01-01 26852153.025050600 2017-04-01 27176367.134934000 2017-07-01 27641774.707906400 2017-10-01 27901505.132109000 2018-01-01 28000304.353644300 2018-04-01 27805667.418250103