Year Percent of Working-Age Population 1960-01-01 4.22847627400882 1961-01-01 4.27899142858036 1962-01-01 4.30787151223455 1963-01-01 4.31579567619672 1964-01-01 4.30083127553707 1965-01-01 4.26322579145553 1966-01-01 4.33896156185483 1967-01-01 4.38867348795543 1968-01-01 4.41427587444044 1969-01-01 4.41926572982229 1970-01-01 4.40808462143968 1971-01-01 4.48903747552666 1972-01-01 4.54858838634899 1973-01-01 4.58971318253671 1974-01-01 4.61849989014317 1975-01-01 4.63794079913083 1976-01-01 4.74366529169122 1977-01-01 4.83562444869520 1978-01-01 4.91497215067162 1979-01-01 4.97999231154695 1980-01-01 5.03303112863257 1981-01-01 5.13151777630967 1982-01-01 5.21007130209172 1983-01-01 5.27421802488109 1984-01-01 5.33012422749552 1985-01-01 5.38003864441856 1986-01-01 5.51882628893351 1987-01-01 5.62301546225298 1988-01-01 5.68721269418720 1989-01-01 5.70314404094565 1990-01-01 5.66497312961978 1991-01-01 5.75343614592555 1992-01-01 5.80227060570902 1993-01-01 5.81151514230576 1994-01-01 5.78059380798906 1995-01-01 5.70939551220508 1996-01-01 5.68217551106674 1997-01-01 5.66981134328453 1998-01-01 5.67735772805761 1999-01-01 5.70980538113033 2000-01-01 5.76919350400542 2001-01-01 5.76689191508162 2002-01-01 5.74481043588742 2003-01-01 5.70876783166798 2004-01-01 5.66559756792258 2005-01-01 5.61879357852162 2006-01-01 5.65849661820365 2007-01-01 5.70011079899212 2008-01-01 5.73320282322569 2009-01-01 5.74545094150681 2010-01-01 5.73277975032038 2011-01-01 5.72521512412178 2012-01-01 5.68699007110348 2013-01-01 5.63307558242194 2014-01-01 5.58067433148172 2015-01-01 5.53850487888185 2016-01-01 5.54165039934625 2017-01-01 5.54485245695527