Year	Thousands of Persons
2003-01-01	38.8
2004-01-01	39.0
2005-01-01	40.4
2006-01-01	40.9
2007-01-01	40.3
2008-01-01	40.1
2009-01-01	38.6
2010-01-01	39.0
2011-01-01	39.2
2012-01-01	39.9