Year Persons 1995-01-01 23500 1996-01-01 24250 1997-01-01 24250 1998-01-01 23250 1999-01-01 21750 2000-01-01 18750 2001-01-01 18750 2002-01-01 17500 2003-01-01 17500 2004-01-01 18000 2005-01-01 17000 2006-01-01 14750 2007-01-01 10750 2008-01-01 11750 2009-01-01 13750 2010-01-01 14000 2011-01-01 13750 2012-01-01 16000 2013-01-01 16000 2014-01-01 14000 2015-01-01 11750 2016-01-01 10250 2017-01-01 8500