Year Persons 1986-01-01 164250 1987-01-01 160925 1988-01-01 156050 1989-01-01 150875 1990-01-01 156900 1991-01-01 157400 1992-01-01 159900 1993-01-01 159375 1994-01-01 164100 1995-01-01 161400 1996-01-01 162200 1997-01-01 145375 1998-01-01 147625 1999-01-01 162750 2000-01-01 153150 2001-01-01 162750 2002-01-01 162850 2003-01-01 153625 2004-01-01 148150 2005-01-01 143975 2006-01-01 148575 2007-01-01 150150 2008-01-01 144650 2009-01-01 139350 2010-01-01 145300 2011-01-01 151175 2012-01-01 147450 2013-01-01 143600 2014-01-01 144025 2015-01-01 144625 2016-01-01 160425 2017-01-01 159750