Year Persons 2000-01-01 171400 2001-01-01 178400 2002-01-01 178550 2003-01-01 175700 2004-01-01 176075 2005-01-01 181000 2006-01-01 168100 2007-01-01 164025 2008-01-01 161250 2009-01-01 165050 2010-01-01 169700 2011-01-01 163775 2012-01-01 160825 2013-01-01 160125 2014-01-01 156925 2015-01-01 153800 2016-01-01 148550 2017-01-01 144200