Year	Percent of Working-Age Population
1960-01-01	15.7310898526911
1961-01-01	16.0022007790803
1962-01-01	16.2579385814324
1963-01-01	16.5079518569132
1964-01-01	16.7661066979400
1965-01-01	17.0447421563766
1966-01-01	17.4193144922106
1967-01-01	17.7899887275236
1968-01-01	18.1562480349221
1969-01-01	18.5151770998498
1970-01-01	18.8537226664777
1971-01-01	19.2039126008104
1972-01-01	19.5055120465953
1973-01-01	19.7645437389174
1974-01-01	19.9908191003959
1975-01-01	20.1856228805034
1976-01-01	20.4864252852274
1977-01-01	20.7725025297953
1978-01-01	20.9862898051265
1979-01-01	21.0431300011326
1980-01-01	20.9070884462219
1981-01-01	20.7041394242259
1982-01-01	20.3153389319608
1983-01-01	19.8631805470623
1984-01-01	19.5139302411099
1985-01-01	19.3584378963726
1986-01-01	19.4684854099837
1987-01-01	19.7347234584964
1988-01-01	20.1016851301858
1989-01-01	20.4797336662886
1990-01-01	20.8155909753189
1991-01-01	21.1987829196034
1992-01-01	21.5449260131114
1993-01-01	21.8617619571953
1994-01-01	22.1633206548479
1995-01-01	22.4601615023490
1996-01-01	22.8247892898908
1997-01-01	23.1609699241179
1998-01-01	23.4858641914265
1999-01-01	23.8223325463336
2000-01-01	24.1847905765233
2001-01-01	24.5648051442168
2002-01-01	24.9627278174112
2003-01-01	25.3617731864102
2004-01-01	25.7287277017419
2005-01-01	26.0459637928771
2006-01-01	26.4020798258475
2007-01-01	26.6969740821887
2008-01-01	26.9736321421796
2009-01-01	27.2942115167628
2010-01-01	27.7017453042625
2011-01-01	28.1801258680024
2012-01-01	28.7447919374969
2013-01-01	29.3738958541256
2014-01-01	30.0205966070686
2015-01-01	30.6511235817377
2016-01-01	31.2180173157518
2017-01-01	31.7701086599106