Year Percent of Working-Age Population 1960-01-01 14.4137160988823 1961-01-01 14.7333984384384 1962-01-01 15.0420484801720 1963-01-01 15.3486699140142 1964-01-01 15.6655636317336 1965-01-01 16.0019688881722 1966-01-01 16.4583559046379 1967-01-01 16.9025060285095 1968-01-01 17.3356687950336 1969-01-01 17.7578776308554 1970-01-01 18.1705544572237 1971-01-01 18.6343412831011 1972-01-01 19.0461635569748 1973-01-01 19.4251765661279 1974-01-01 19.7987405200122 1975-01-01 20.1747554745777 1976-01-01 20.6915090744907 1977-01-01 21.2231965923127 1978-01-01 21.6466437729368 1979-01-01 21.7727062896444 1980-01-01 21.5116747222253 1981-01-01 21.0671222356431 1982-01-01 20.2552852611411 1983-01-01 19.3071568149065 1984-01-01 18.5303477426401 1985-01-01 18.0816475013507 1986-01-01 18.1391218514410 1987-01-01 18.4368679846481 1988-01-01 18.8396126169116 1989-01-01 19.1547473702561 1990-01-01 19.2809224534602 1991-01-01 19.5121693003439 1992-01-01 19.5843819621404 1993-01-01 19.5478724172369 1994-01-01 19.4732091446181 1995-01-01 19.3989338963434 1996-01-01 19.5492841325906 1997-01-01 19.6925630170506 1998-01-01 19.8042904252391 1999-01-01 19.8396954979189 2000-01-01 19.7799749844526 2001-01-01 19.8032321328387 2002-01-01 19.7440934808582 2003-01-01 19.6615036649632 2004-01-01 19.6360298030206 2005-01-01 19.7173206579764 2006-01-01 19.9914661282285 2007-01-01 20.3420788167032 2008-01-01 20.7782660882935 2009-01-01 21.3128759768475 2010-01-01 21.9547179893923 2011-01-01 22.8158205148565 2012-01-01 23.7784757745601 2013-01-01 24.8152776903893 2014-01-01 25.8723343124605 2015-01-01 26.9078327873683 2016-01-01 27.9757265998082 2017-01-01 29.0048667182993