Year Persons 1983-01-01 39500 1984-01-01 36750 1985-01-01 29000 1986-01-01 20750 1987-01-01 21500 1988-01-01 22250 1989-01-01 26500 1990-01-01 25750 1991-01-01 27250 1992-01-01 28250 1993-01-01 29250 1994-01-01 22500 1995-01-01 26750 1996-01-01 25250 1997-01-01 19500 1998-01-01 16750 1999-01-01 19000 2000-01-01 11500 2001-01-01 16250 2002-01-01 14250 2003-01-01 16750 2004-01-01 14250 2005-01-01 16500 2006-01-01 15750 2007-01-01 15500 2008-01-01 19250 2009-01-01 23000 2010-01-01 26250 2011-01-01 28500 2012-01-01 29500 2013-01-01 25500 2014-01-01 25000 2015-01-01 22250 2016-01-01 26250 2017-01-01 24500