Year	Persons
1998-01-01	20090675
1999-01-01	20357350
2000-01-01	20752475
2001-01-01	21169225
2002-01-01	21477900
2003-01-01	21709975
2004-01-01	22019875
2005-01-01	22060425
2006-01-01	22388275
2007-01-01	22517400
2008-01-01	22698600
2009-01-01	22324225
2010-01-01	22151600
2011-01-01	22214925
2012-01-01	22149175
2013-01-01	21755350
2014-01-01	21809525
2015-01-01	21972625
2016-01-01	22241150
2017-01-01	22443625