Year Persons 1979-01-01 23154750 1980-01-01 22790000 1981-01-01 21825750 1982-01-01 21319750 1983-01-01 21091750 1984-01-01 21272500 1985-01-01 21416250 1986-01-01 21387500 1987-01-01 21672000 1988-01-01 22319500 1989-01-01 22721500 1990-01-01 22833500 1991-01-01 22208000 1992-01-01 21646000 1993-01-01 21401500 1994-01-01 21523500 1995-01-01 21860500 1996-01-01 22193750 1997-01-01 22741500 1998-01-01 23319050 1999-01-01 23550925 2000-01-01 23929075 2001-01-01 24176650 2002-01-01 24342225 2003-01-01 24406700 2004-01-01 24619975 2005-01-01 24928675 2006-01-01 25132625 2007-01-01 25269275 2008-01-01 25485250 2009-01-01 25010650 2010-01-01 24929425 2011-01-01 25026975 2012-01-01 25094575 2013-01-01 25398625 2014-01-01 25840900 2015-01-01 26380825 2016-01-01 26631750 2017-01-01 26946925