Year Percent of Working-Age Population 1960-01-01 11.7690865240287 1961-01-01 11.9286804520516 1962-01-01 12.0595229045084 1963-01-01 12.1744488909001 1964-01-01 12.2916697322552 1965-01-01 12.4254973746734 1966-01-01 12.6912972707223 1967-01-01 12.9602371063943 1968-01-01 13.2401194611094 1969-01-01 13.5409200981225 1970-01-01 13.8684494177606 1971-01-01 14.2747003707070 1972-01-01 14.6859613969679 1973-01-01 15.0904620270794 1974-01-01 15.4715940080014 1975-01-01 15.8198758801488 1976-01-01 16.2994407955499 1977-01-01 16.7516504481730 1978-01-01 17.1599563727018 1979-01-01 17.4989338535734 1980-01-01 17.7580785561845 1981-01-01 17.9504896648537 1982-01-01 18.0574120820982 1983-01-01 18.1273319080281 1984-01-01 18.2267513915594 1985-01-01 18.3944926912615 1986-01-01 18.6602590487874 1987-01-01 18.9726548577653 1988-01-01 19.3143584586812 1989-01-01 19.6551521232195 1990-01-01 19.9759494754117 1991-01-01 20.3271551624214 1992-01-01 20.6564090896163 1993-01-01 20.9541446932427 1994-01-01 21.2068858862309 1995-01-01 21.4096844927838 1996-01-01 21.6728347028796 1997-01-01 21.8803336457248 1998-01-01 22.0551177348213 1999-01-01 22.2287199593105 2000-01-01 22.4224627651107 2001-01-01 22.7265421017337 2002-01-01 23.0575125657840 2003-01-01 23.4027396221036 2004-01-01 23.7368703717092 2005-01-01 24.0525050312315 2006-01-01 24.3218824554441 2007-01-01 24.5520555549879 2008-01-01 24.8321084087883 2009-01-01 25.2916156881849 2010-01-01 26.0077312660335 2011-01-01 26.9655021816813 2012-01-01 28.1502325344270 2013-01-01 29.4751296431376 2014-01-01 30.7887126228556 2015-01-01 31.9906494021333 2016-01-01 33.0743773749574 2017-01-01 34.0391176106056