Year Persons 2000-01-01 77325 2001-01-01 72025 2002-01-01 68600 2003-01-01 67000 2004-01-01 62875 2005-01-01 60375 2006-01-01 62850 2007-01-01 56500 2008-01-01 64625 2009-01-01 67450 2010-01-01 63700 2011-01-01 60000 2012-01-01 57500 2013-01-01 57275 2014-01-01 58925 2015-01-01 52975 2016-01-01 54950 2017-01-01 54425