Year Percent of Working-Age Population 1960-01-01 8.75886670626037 1961-01-01 8.99245535617499 1962-01-01 9.21495373924393 1963-01-01 9.43031737763839 1964-01-01 9.64312389333355 1965-01-01 9.85665087616274 1966-01-01 10.10691732042510 1967-01-01 10.34657485943480 1968-01-01 10.57743814055280 1969-01-01 10.80185816531620 1970-01-01 11.02245931595880 1971-01-01 11.26665467404790 1972-01-01 11.49708305776130 1973-01-01 11.71493667832360 1974-01-01 11.92082012773050 1975-01-01 12.11594537247560 1976-01-01 12.39390446523350 1977-01-01 12.65851952198780 1978-01-01 12.90923948044190 1979-01-01 13.14315971558000 1980-01-01 13.35964337760390 1981-01-01 13.57155614122040 1982-01-01 13.75404291476580 1983-01-01 13.91707529341320 1984-01-01 14.07227089346920 1985-01-01 14.22608005681470 1986-01-01 14.41822849040250 1987-01-01 14.59432183164870 1988-01-01 14.75321364341500 1989-01-01 14.89096183995010 1990-01-01 15.00577760577920 1991-01-01 15.17476024906400 1992-01-01 15.31100971546510 1993-01-01 15.41870701824710 1994-01-01 15.50324036287520 1995-01-01 15.56968935948410 1996-01-01 15.69410971110490 1997-01-01 15.79472806566080 1998-01-01 15.87298043023870 1999-01-01 15.92752415990560 2000-01-01 15.95976745813970 2001-01-01 16.01348683278990 2002-01-01 16.03993951938360 2003-01-01 16.04854765243350 2004-01-01 16.05057513584100 2005-01-01 16.05544430808790 2006-01-01 16.10308174235000 2007-01-01 16.14330484161490 2008-01-01 16.18680709670650 2009-01-01 16.24570502610970 2010-01-01 16.32845897329250 2011-01-01 16.46394799227840 2012-01-01 16.60948636804140 2013-01-01 16.76548567641470 2014-01-01 16.93049020921550 2015-01-01 17.10501683547330 2016-01-01 17.31486214585190 2017-01-01 17.52050367990480