Year Persons 2000-01-01 148375 2001-01-01 143025 2002-01-01 140600 2003-01-01 137175 2004-01-01 138600 2005-01-01 140775 2006-01-01 149950 2007-01-01 156150 2008-01-01 171300 2009-01-01 157850 2010-01-01 160975 2011-01-01 162550 2012-01-01 169625 2013-01-01 167900 2014-01-01 162175 2015-01-01 166525 2016-01-01 158750 2017-01-01 159975