Quarterly Persons
2005-01-01 19883122
2005-04-01 19865011
2005-07-01 19967088
2005-10-01 20069557
2006-01-01 19895592
2006-04-01 20007972
2006-07-01 20013731
2006-10-01 20038993
2007-01-01 20204059
2007-04-01 20218011
2007-07-01 20362436
2007-10-01 20504932
2008-01-01 20484658
2008-04-01 20587431
2008-07-01 20552575
2008-10-01 20746569
2009-01-01 20820071
2009-04-01 20883379
2009-07-01 21043870
2009-10-01 21283176
2010-01-01 21304701
2010-04-01 21488891
2010-07-01 21501674
2010-10-01 21529838
2011-01-01 21461359
2011-04-01 21492579
2011-07-01 21554817
2011-10-01 21615971
2012-01-01 21741676
2012-04-01 21717954
2012-07-01 21613792
2012-10-01 21540099
2013-01-01 21586265
2013-04-01 21516680
2013-07-01 21495157
2013-10-01 21489382
2014-01-01 21410945
2014-04-01 21301551
2014-07-01 21356222
2014-10-01 21483179
2015-01-01 21378289
2015-04-01 21388323
2015-07-01 21554913
2015-10-01 21582977
2016-01-01 21528450
2016-04-01 21592696
2016-07-01 21340766
2016-10-01 21576765
2017-01-01 21497056
2017-04-01 21635652
2017-07-01 21630452
2017-10-01 21592556
2018-01-01 21685943
2018-04-01 21832023