Year Persons 1970-01-01 9968315.00 1980-01-01 15425011.00 1990-01-01 17882142.00 1991-01-01 20347744.00 1992-01-01 20950000.00 1993-01-01 21619565.00 1994-01-01 22319000.00 1995-01-01 21778402.00 1996-01-01 22558985.00 1997-01-01 23515814.00 1998-01-01 24135936.00 1999-01-01 24460085.00 2000-01-01 24707182.00 2001-01-01 24788595.00 2002-01-01 25157665.00 2003-01-01 25464920.00 2004-01-01 25886585.00 2005-01-01 26687186.50 2006-01-01 27238124.00 2007-01-01 27631038.25 2008-01-01 28140686.50 2009-01-01 28326770.50 2010-01-01 28807493.25 2011-01-01 29385686.50 2012-01-01 30123234.00 2013-01-01 30398121.00 2014-01-01 30736590.50 2015-01-01 31383700.50 2016-01-01 31899192.00 2017-01-01 32428169.50