Year	Persons
1998-01-01	20371000
1999-01-01	20626600
2000-01-01	21018975
2001-01-01	21445400
2002-01-01	21763475
2003-01-01	21994250
2004-01-01	22313550
2005-01-01	22361500
2006-01-01	22709875
2007-01-01	22846075
2008-01-01	23039075
2009-01-01	22649500
2010-01-01	22472375
2011-01-01	22545500
2012-01-01	22510775
2013-01-01	22136150
2014-01-01	22211050
2015-01-01	22394900
2016-01-01	22677875
2017-01-01	22950150