Quarter	Persons
2005-01-01	17647075
2005-04-01	17466381
2005-07-01	17573791
2005-10-01	17773672
2006-01-01	17859068
2006-04-01	17939231
2006-07-01	18180862
2006-10-01	18232768
2007-01-01	18206618
2007-04-01	18272307
2007-07-01	18264315
2007-10-01	18414350
2008-01-01	18611724
2008-04-01	18783183
2008-07-01	18847848
2008-10-01	18939537
2009-01-01	19183920
2009-04-01	19236883
2009-07-01	19246861
2009-10-01	19280285
2010-01-01	19314651
2010-04-01	19517092
2010-07-01	19502923
2010-10-01	19602283
2011-01-01	19773402
2011-04-01	19874769
2011-07-01	20029288
2011-10-01	19981156
2012-01-01	20068048
2012-04-01	20297335
2012-07-01	20462156
2012-10-01	20360704
2013-01-01	20510080
2013-04-01	20693158
2013-07-01	20601206
2013-10-01	20897017
2014-01-01	20782989
2014-04-01	20762130
2014-07-01	20895004
2014-10-01	20955420
2015-01-01	20987631
2015-04-01	21147487
2015-07-01	21226998
2015-10-01	21468759
2016-01-01	21478538
2016-04-01	21564028
2016-07-01	21623167
2016-10-01	21761969
2017-01-01	21701749
2017-04-01	21687814
2017-07-01	21815370
2017-10-01	21884365
2018-01-01	22018329
2018-04-01	22214048