Year Percent of Working-Age Population 1960-01-01 10.4525143802306 1961-01-01 10.4266859082137 1962-01-01 10.3802637405728 1963-01-01 10.3182208546238 1964-01-01 10.2448319064523 1965-01-01 10.1644278863507 1966-01-01 10.4507456525105 1967-01-01 10.7645255975792 1968-01-01 11.1213887893691 1969-01-01 11.5369163686248 1970-01-01 12.0265670240238 1971-01-01 12.1970733964410 1972-01-01 12.3555093227418 1973-01-01 12.4908647426864 1974-01-01 12.5855516745676 1975-01-01 12.6284269285407 1976-01-01 12.7185065207880 1977-01-01 12.7697698268004 1978-01-01 12.7729346301083 1979-01-01 12.7123986005709 1980-01-01 12.5906529719026 1981-01-01 12.4037954245992 1982-01-01 12.1708062905642 1983-01-01 11.9270507400927 1984-01-01 11.7240390709091 1985-01-01 11.5923275804260 1986-01-01 11.6622704362794 1987-01-01 11.7747528980180 1988-01-01 11.9317928413207 1989-01-01 12.1489156255663 1990-01-01 12.4314887945012 1991-01-01 12.7608169893383 1992-01-01 13.1595234983565 1993-01-01 13.6189792647796 1994-01-01 14.1242840891260 1995-01-01 14.6702277144830 1996-01-01 15.1868408340220 1997-01-01 15.7072796784244 1998-01-01 16.2253840094525 1999-01-01 16.7440748245990 2000-01-01 17.2681239173029 2001-01-01 17.8188938029153 2002-01-01 18.3727330255922 2003-01-01 18.8937758686484 2004-01-01 19.3080024434942 2005-01-01 19.5689972614231 2006-01-01 19.6011010816279 2007-01-01 19.4954056246292 2008-01-01 19.3252523501310 2009-01-01 19.1855288102488 2010-01-01 19.1287387144943 2011-01-01 19.2591394832334 2012-01-01 19.4389819881441 2013-01-01 19.6921704427630 2014-01-01 20.0520987789052 2015-01-01 20.5382557415688 2016-01-01 21.2023008992952 2017-01-01 21.9935137205156