Year Persons 2003-01-01 9800 2004-01-01 10225 2005-01-01 11050 2006-01-01 11550 2007-01-01 12025 2008-01-01 12025 2009-01-01 12450 2010-01-01 13125 2011-01-01 13550 2012-01-01 13725 2013-01-01 14050 2014-01-01 15450 2015-01-01 15725 2016-01-01 15575 2017-01-01 15750