Year Thousands of Persons 2003-01-01 11.8 2004-01-01 12.3 2005-01-01 13.5 2006-01-01 13.5 2007-01-01 13.5 2008-01-01 13.9 2009-01-01 14.1 2010-01-01 13.2 2011-01-01 12.3 2012-01-01 12.3