Year Persons 1999-01-01 57650 2000-01-01 51775 2001-01-01 47575 2002-01-01 45075 2003-01-01 42000 2004-01-01 47550 2005-01-01 47025 2006-01-01 45075 2007-01-01 42950 2008-01-01 44500 2009-01-01 41375 2010-01-01 38825 2011-01-01 35375 2012-01-01 31225 2013-01-01 31075 2014-01-01 30800 2015-01-01 31875 2016-01-01 30300 2017-01-01 32500