Year Persons 1960-01-01 23660000 1961-01-01 23978000 1962-01-01 24185000 1963-01-01 24230000 1964-01-01 24522000 1965-01-01 24776000 1966-01-01 24934000 1967-01-01 24570000 1968-01-01 24436000 1969-01-01 24478000 1970-01-01 24381000 1971-01-01 24165000 1972-01-01 24139000 1973-01-01 24715000 1974-01-01 24803000 1975-01-01 24719000 1976-01-01 24509000 1977-01-01 24538000 1978-01-01 24696000 1979-01-01 25080000 1980-01-01 25004000 1981-01-01 24011000 1982-01-01 23584000 1983-01-01 23304000 1984-01-01 23854000 1985-01-01 24250000 1986-01-01 24380000 1987-01-01 24754000 1988-01-01 25708000 1989-01-01 26549000 1990-01-01 26818000 1991-01-01 26058000 1992-01-01 25435000 1993-01-01 25088000 1994-01-01 25253000 1995-01-01 25489000 1996-01-01 25727000 1997-01-01 26155000 1998-01-01 26395000 1999-01-01 26691000 2000-01-01 27365700 2001-01-01 27625975 2002-01-01 27827875 2003-01-01 28107275 2004-01-01 28413650 2005-01-01 28738700 2006-01-01 29040700 2007-01-01 29260650 2008-01-01 29520150 2009-01-01 29058675 2010-01-01 29125000 2011-01-01 29282075 2012-01-01 29595900 2013-01-01 29954125 2014-01-01 30671275 2015-01-01 31193225 2016-01-01 31627725 2017-01-01 31963450