Year Thousands of Persons 2000-01-01 16078.00 2001-01-01 15789.00 2002-01-01 16264.00 2003-01-01 15906.00 2004-01-01 15924.00 2005-01-01 17035.00 2006-01-01 17460.00 2007-01-01 17232.00 2008-01-01 17788.25 2009-01-01 17541.25 2010-01-01 17393.25 2011-01-01 17661.75