Year	Persons
2006-01-01	16193925
2007-01-01	16488800
2008-01-01	16846525
2009-01-01	17192200
2010-01-01	17606700
2011-01-01	18209700
2012-01-01	18494525
2013-01-01	18936700
2014-01-01	19547100
2015-01-01	19910225
2016-01-01	20332100
2017-01-01	20867150