Year Percent of Working-Age Population 1960-01-01 6.14423777998799 1961-01-01 6.21940540731929 1962-01-01 6.29654184405787 1963-01-01 6.37114577095118 1964-01-01 6.43641532660655 1965-01-01 6.48910950087173 1966-01-01 6.55406434789079 1967-01-01 6.60036640566699 1968-01-01 6.63179043529292 1969-01-01 6.65294955589385 1970-01-01 6.66686700064613 1971-01-01 6.68655240882235 1972-01-01 6.69060373491972 1973-01-01 6.68145260477620 1974-01-01 6.65987012006815 1975-01-01 6.62727394887179 1976-01-01 6.64297664117835 1977-01-01 6.64689254461192 1978-01-01 6.63991979190710 1979-01-01 6.62174304615295 1980-01-01 6.59376916331237 1981-01-01 6.57836900743688 1982-01-01 6.55532586735427 1983-01-01 6.53097857092121 1984-01-01 6.51300389062130 1985-01-01 6.50775608088252 1986-01-01 6.53850341501226 1987-01-01 6.58553785886767 1988-01-01 6.65788597063997 1989-01-01 6.76729078801202 1990-01-01 6.92157493570857 1991-01-01 7.12243974945981 1992-01-01 7.34877185494410 1993-01-01 7.59412260021940 1994-01-01 7.84987178660138 1995-01-01 8.11245899383163 1996-01-01 8.35480457934426 1997-01-01 8.60015268320025 1998-01-01 8.85307061023322 1999-01-01 9.12155786163128 2000-01-01 9.40996842299994 2001-01-01 9.70752848965773 2002-01-01 10.02245233523420 2003-01-01 10.34272243739000 2004-01-01 10.65070306988240 2005-01-01 10.94033002428330 2006-01-01 11.21462977979380 2007-01-01 11.48040513053760 2008-01-01 11.75349582601130 2009-01-01 12.05181188009460 2010-01-01 12.38561564671960 2011-01-01 12.79704909154360 2012-01-01 13.23320613622690 2013-01-01 13.70340238528410 2014-01-01 14.21904678416230 2015-01-01 14.78756579463070 2016-01-01 15.34249346564920 2017-01-01 15.94899690688440