Year	Thousands of Persons
2001-01-01	22.6
2002-01-01	23.9
2003-01-01	23.2
2004-01-01	25.2
2005-01-01	25.5
2006-01-01	24.6
2007-01-01	22.5
2008-01-01	20.4
2009-01-01	18.3
2010-01-01	17.6
2011-01-01	15.5
2012-01-01	13.0
2013-01-01	12.1
2014-01-01	11.4
2015-01-01	11.3
2016-01-01	10.7