Quarter	Persons
2005-01-01	17131187
2005-04-01	16979177
2005-07-01	17093008
2005-10-01	17334085
2006-01-01	17365651
2006-04-01	17493848
2006-07-01	17651497
2006-10-01	17738250
2007-01-01	17676585
2007-04-01	17814512
2007-07-01	17765272
2007-10-01	17933341
2008-01-01	18048077
2008-04-01	18292980
2008-07-01	18241240
2008-10-01	18283910
2009-01-01	18348960
2009-04-01	18374312
2009-07-01	18320182
2009-10-01	18370442
2010-01-01	18394854
2010-04-01	18657570
2010-07-01	18638439
2010-10-01	18658778
2011-01-01	18862012
2011-04-01	19003511
2011-07-01	19151221
2011-10-01	19140954
2012-01-01	19214490
2012-04-01	19519562
2012-07-01	19611667
2012-10-01	19488514
2013-01-01	19653656
2013-04-01	19782282
2013-07-01	19701778
2013-10-01	20077660
2014-01-01	19940834
2014-04-01	19894974
2014-07-01	19941302
2014-10-01	20187152
2015-01-01	20216636
2015-04-01	20414403
2015-07-01	20380954
2015-10-01	20719947
2016-01-01	20745019
2016-04-01	20830357
2016-07-01	20871492
2016-10-01	21088770
2017-01-01	21075436
2017-04-01	21060943
2017-07-01	21189163
2017-10-01	21284380
2018-01-01	21453090
2018-04-01	21582179