Year Persons 2003-01-01 14575 2004-01-01 15375 2005-01-01 14750 2006-01-01 14125 2007-01-01 14350 2008-01-01 15550 2009-01-01 18100 2010-01-01 18025 2011-01-01 18975 2012-01-01 19625 2013-01-01 18725 2014-01-01 16375 2015-01-01 15875 2016-01-01 14575 2017-01-01 16400