Year Percent of Working-Age Population 1960-01-01 8.76670219590523 1961-01-01 8.83280087064713 1962-01-01 8.88589247909632 1963-01-01 8.93597068140345 1964-01-01 8.99564167196312 1965-01-01 9.07350373144538 1966-01-01 9.22794265325875 1967-01-01 9.39400706775600 1968-01-01 9.57270612087327 1969-01-01 9.76242781750484 1970-01-01 9.96279316827438 1971-01-01 10.22202672583500 1972-01-01 10.48505522625650 1973-01-01 10.75674225162390 1974-01-01 11.04218004661380 1975-01-01 11.34370620971500 1976-01-01 11.71682217418430 1977-01-01 12.10261890517020 1978-01-01 12.48982386990160 1979-01-01 12.86039175793560 1980-01-01 13.20589802444510 1981-01-01 13.54728717920310 1982-01-01 13.86396244494480 1983-01-01 14.16985191381810 1984-01-01 14.48267745795420 1985-01-01 14.81531709109890 1986-01-01 15.19345050806060 1987-01-01 15.58122409225710 1988-01-01 15.99957440484110 1989-01-01 16.47885281894990 1990-01-01 17.03879941456110 1991-01-01 17.64044951097580 1992-01-01 18.31100053973640 1993-01-01 19.03841954115770 1994-01-01 19.80070555693010 1995-01-01 20.58475243686450 1996-01-01 21.41180466988350 1997-01-01 22.26073917115110 1998-01-01 23.12661966783380 1999-01-01 24.00366386167940 2000-01-01 24.89251049897250 2001-01-01 25.77899619698280 2002-01-01 26.67149946533150 2003-01-01 27.58444112887090 2004-01-01 28.53657958375580 2005-01-01 29.54534683433110 2006-01-01 30.51055835757790 2007-01-01 31.49662458707450 2008-01-01 32.54573363287220 2009-01-01 33.72388729215910 2010-01-01 35.07443156029040 2011-01-01 36.45029893248420 2012-01-01 37.97396624244730 2013-01-01 39.58342344521780 2014-01-01 41.16806372852660 2015-01-01 42.65274333694080 2016-01-01 43.90859457717770 2017-01-01 45.03246723146880