Year Percent of Working-Age Population 1960-01-01 3.63068684780855 1961-01-01 3.77439041310812 1962-01-01 3.90786954581288 1963-01-01 4.03017596542948 1964-01-01 4.14441816152167 1965-01-01 4.24945696770768 1966-01-01 4.38749102314474 1967-01-01 4.51056932085084 1968-01-01 4.62005154270170 1969-01-01 4.71649843369300 1970-01-01 4.80174141713227 1971-01-01 4.91525367936298 1972-01-01 5.01104872479635 1973-01-01 5.09109946993282 1974-01-01 5.16039682144994 1975-01-01 5.21928293115514 1976-01-01 5.30737605941534 1977-01-01 5.37888843204402 1978-01-01 5.43729147588216 1979-01-01 5.48484474710950 1980-01-01 5.52311239541276 1981-01-01 5.59640647802797 1982-01-01 5.65532235931494 1983-01-01 5.70300281874674 1984-01-01 5.74104895331879 1985-01-01 5.77206908498130 1986-01-01 5.83453848886183 1987-01-01 5.88246183655566 1988-01-01 5.91822080343070 1989-01-01 5.94453183178337 1990-01-01 5.96325551559331 1991-01-01 6.00395456844622 1992-01-01 6.03099594814267 1993-01-01 6.04679431387092 1994-01-01 6.05233461540734 1995-01-01 6.04904431498331 1996-01-01 6.03305503924366 1997-01-01 6.00568468856115 1998-01-01 5.97019439592087 1999-01-01 5.92945877002443 2000-01-01 5.88542554419842 2001-01-01 5.86680110754095 2002-01-01 5.83834358552568 2003-01-01 5.80328814177831 2004-01-01 5.76405083428241 2005-01-01 5.72280111051696 2006-01-01 5.70239811555240 2007-01-01 5.67513616087932 2008-01-01 5.64394184579437 2009-01-01 5.61030347933046 2010-01-01 5.57683623349573 2011-01-01 5.55438952886638 2012-01-01 5.52797729905091 2013-01-01 5.50272020702046 2014-01-01 5.48283250109524 2015-01-01 5.47151928647145 2016-01-01 5.49184644402421 2017-01-01 5.51206852773220