Year Persons 1995-01-01 11000 1996-01-01 11750 1997-01-01 12250 1998-01-01 11500 1999-01-01 10500 2000-01-01 9500 2001-01-01 9500 2002-01-01 8250 2003-01-01 8250 2004-01-01 9000 2005-01-01 8250 2006-01-01 7500 2007-01-01 5000 2008-01-01 5250 2009-01-01 5500 2010-01-01 5500 2011-01-01 5750 2012-01-01 6500 2013-01-01 7500 2014-01-01 6500 2015-01-01 4500 2016-01-01 4500 2017-01-01 4250