Year Persons 2001-01-01 3200 2002-01-01 4100 2003-01-01 3225 2004-01-01 6150 2005-01-01 7275 2006-01-01 6025 2007-01-01 6500 2008-01-01 7175 2009-01-01 9700 2010-01-01 12400 2011-01-01 11375 2012-01-01 16525 2013-01-01 17975 2014-01-01 19000 2015-01-01 18825 2016-01-01 17975 2017-01-01 13050