Year	Persons
1999-01-01	17308125
2000-01-01	17500275
2001-01-01	17721350
2002-01-01	18027500
2003-01-01	18320150
2004-01-01	18580925
2005-01-01	18870750
2006-01-01	19143675
2007-01-01	19469825
2008-01-01	19743000
2009-01-01	19880250
2010-01-01	19950375
2011-01-01	20023650
2012-01-01	20031500
2013-01-01	19984600
2014-01-01	19950650
2015-01-01	19960150
2016-01-01	20000400
2017-01-01	20084425