Year Percent of Working-Age Population 1960-01-01 8.39448642292533 1961-01-01 8.64757584349305 1962-01-01 8.89009911774317 1963-01-01 9.06467640103274 1964-01-01 9.16351861845656 1965-01-01 9.24664159054272 1966-01-01 9.47842033435688 1967-01-01 9.69881944002882 1968-01-01 9.89515072083879 1969-01-01 10.05710659898480 1970-01-01 10.20239482886510 1971-01-01 10.20070691829100 1972-01-01 10.18099547511310 1973-01-01 10.16032222397730 1974-01-01 10.11452589364900 1975-01-01 10.08934449355780 1976-01-01 10.08596304323870 1977-01-01 10.08242250492740 1978-01-01 10.03824592654690 1979-01-01 9.98910897828602 1980-01-01 9.95436820708537 1981-01-01 9.98130720639422 1982-01-01 10.02118810327240 1983-01-01 10.06850259758170 1984-01-01 10.10870380088460 1985-01-01 10.15305972560890 1986-01-01 10.73078508578660 1987-01-01 11.34929946856240 1988-01-01 11.98531093205630 1989-01-01 12.64755036780670 1990-01-01 13.33755557853380 1991-01-01 13.34969573523270 1992-01-01 13.34576186925180 1993-01-01 13.33888100249650 1994-01-01 13.35237544290980 1995-01-01 13.37982234556040 1996-01-01 13.23327675602780 1997-01-01 13.08273070450720 1998-01-01 12.92783688337070 1999-01-01 12.76752607498320 2000-01-01 12.57635911280500 2001-01-01 12.33718536297710 2002-01-01 12.08083544790080 2003-01-01 11.82058777057990 2004-01-01 11.54520917678810 2005-01-01 11.27859849731530 2006-01-01 11.45393884247390 2007-01-01 11.68319680607130 2008-01-01 11.96741523557900 2009-01-01 12.32963139017330 2010-01-01 12.78888766023320 2011-01-01 12.84323076150800 2012-01-01 12.92246520874750 2013-01-01 13.02264950301450 2014-01-01 13.13034514970450 2015-01-01 13.25794377637970 2016-01-01 13.42905205297700 2017-01-01 13.61621477687450