Year	Thousands of Persons
2003-01-01	19.4
2004-01-01	19.5
2005-01-01	19.2
2006-01-01	19.2
2007-01-01	19.0
2008-01-01	17.1
2009-01-01	13.9
2010-01-01	11.5
2011-01-01	11.1
2012-01-01	12.0
2013-01-01	10.9
2014-01-01	10.3
2015-01-01	9.9
2016-01-01	9.0
2017-01-01	8.5