Year Persons 1999-01-01 42275 2000-01-01 28950 2001-01-01 33425 2002-01-01 29525 2003-01-01 35025 2004-01-01 32600 2005-01-01 34825 2006-01-01 32850 2007-01-01 32475 2008-01-01 36725 2009-01-01 55200 2010-01-01 63550 2011-01-01 65750 2012-01-01 63400 2013-01-01 57125 2014-01-01 55575 2015-01-01 48650 2016-01-01 57800 2017-01-01 51000