Year	Persons
2003-01-01	19493675
2004-01-01	19638425
2005-01-01	19818500
2006-01-01	19979050
2007-01-01	20105450
2008-01-01	20193825
2009-01-01	20259650
2010-01-01	20320700
2011-01-01	20344650
2012-01-01	20309500
2013-01-01	20296200
2014-01-01	20895200
2015-01-01	20844000
2016-01-01	20818300
2017-01-01	20857000