Year Percent of Working-Age Population 1960-01-01 14.1027688499391 1961-01-01 14.2956846554605 1962-01-01 14.4468173516423 1963-01-01 14.5584929284881 1964-01-01 14.6595738744687 1965-01-01 14.7567877942745 1966-01-01 14.8425358603812 1967-01-01 14.9039302838344 1968-01-01 14.9420650587932 1969-01-01 14.9627789466569 1970-01-01 14.9663555459084 1971-01-01 15.0144227213333 1972-01-01 15.0416572843954 1973-01-01 15.0559375639230 1974-01-01 15.0598696275292 1975-01-01 15.0722253249008 1976-01-01 15.2056606858825 1977-01-01 15.3424376369861 1978-01-01 15.4787960214098 1979-01-01 15.6143817796670 1980-01-01 15.7539615879949 1981-01-01 15.7900536505072 1982-01-01 15.8200889803823 1983-01-01 15.8537398189744 1984-01-01 15.8986705609167 1985-01-01 15.9670647964331 1986-01-01 16.0683892928980 1987-01-01 16.1791735831537 1988-01-01 16.2965229172780 1989-01-01 16.4246779293967 1990-01-01 16.5656996587031 1991-01-01 16.7526813082255 1992-01-01 16.9381805200214 1993-01-01 17.1279348742344 1994-01-01 17.3108850695662 1995-01-01 17.4834968155827 1996-01-01 17.5785266222289 1997-01-01 17.6642018765929 1998-01-01 17.7424261201681 1999-01-01 17.7954397972257 2000-01-01 17.8100127109167 2001-01-01 17.8430489426500 2002-01-01 17.8420706620859 2003-01-01 17.8302600870461 2004-01-01 17.8403731455819 2005-01-01 17.8885944894552 2006-01-01 17.7818169177058 2007-01-01 17.7050492195258 2008-01-01 17.6769414193013 2009-01-01 17.7253829731451 2010-01-01 17.8653814659710 2011-01-01 18.3060633424883 2012-01-01 18.8336787855022 2013-01-01 19.4411059086669 2014-01-01 20.0968578788032 2015-01-01 20.7873611671126 2016-01-01 21.4048672566372 2017-01-01 22.0393441449182