Year Percent of Working-Age Population 1960-01-01 7.71602486468758 1961-01-01 7.83989602786555 1962-01-01 7.98103231356960 1963-01-01 8.14748403252982 1964-01-01 8.34962275203820 1965-01-01 8.59269296032811 1966-01-01 8.90909286861306 1967-01-01 9.24979701334507 1968-01-01 9.60659277611162 1969-01-01 9.97078719366742 1970-01-01 10.33893188741440 1971-01-01 10.71920246191960 1972-01-01 11.09581321785330 1973-01-01 11.45697287308670 1974-01-01 11.78170805511540 1975-01-01 12.05629743020930 1976-01-01 12.29899272199700 1977-01-01 12.48089087746480 1978-01-01 12.61398385606140 1979-01-01 12.71735112158190 1980-01-01 12.80581161056180 1981-01-01 12.89301458482480 1982-01-01 12.96683819619440 1983-01-01 13.03079058041670 1984-01-01 13.08677751082530 1985-01-01 13.13935410304770 1986-01-01 13.09722698291460 1987-01-01 13.04724014922210 1988-01-01 13.00522019302550 1989-01-01 12.99042447335450 1990-01-01 13.01411345953170 1991-01-01 13.07247658900030 1992-01-01 13.16218668600520 1993-01-01 13.27454766622470 1994-01-01 13.39433724822590 1995-01-01 13.51377758699270 1996-01-01 13.68258481171390 1997-01-01 13.84573043776540 1998-01-01 14.01069695815600 1999-01-01 14.18938677761360 2000-01-01 14.39037032498830 2001-01-01 14.63318081205090 2002-01-01 14.88526469837810 2003-01-01 15.14952114085550 2004-01-01 15.42856989417660 2005-01-01 15.72565113483420 2006-01-01 16.11877287976760 2007-01-01 16.52766621288050 2008-01-01 16.94911532678120 2009-01-01 17.37506403458530 2010-01-01 17.80489649122080 2011-01-01 18.18419111858730 2012-01-01 18.54770043444940 2013-01-01 18.92922167017620 2014-01-01 19.37656981485940 2015-01-01 19.91982579802990 2016-01-01 20.55300229874570 2017-01-01 21.28853485391780