Year	Percent of Working-Age Population
1960-01-01	17.8689284100244
1961-01-01	18.1196555664862
1962-01-01	18.3537177425960
1963-01-01	18.5855953564307
1964-01-01	18.8316924117367
1965-01-01	19.1037447816549
1966-01-01	19.4484220615716
1967-01-01	19.7980588615668
1968-01-01	20.1598500365666
1969-01-01	20.5369743303823
1970-01-01	20.9297232616004
1971-01-01	21.4818818893190
1972-01-01	22.0313148140238
1973-01-01	22.5721288256854
1974-01-01	23.0938504103637
1975-01-01	23.5899276579686
1976-01-01	24.0639813261516
1977-01-01	24.4907603478725
1978-01-01	24.8695389719091
1979-01-01	25.1949414944783
1980-01-01	25.4664141273801
1981-01-01	25.8047438458451
1982-01-01	26.0668648281333
1983-01-01	26.2848245447088
1984-01-01	26.5029718242870
1985-01-01	26.7477429125358
1986-01-01	26.9960141432314
1987-01-01	27.2474360342076
1988-01-01	27.4786936142558
1989-01-01	27.6502053878067
1990-01-01	27.7406428538437
1991-01-01	27.8241418470602
1992-01-01	27.8254359056205
1993-01-01	27.7608620498001
1994-01-01	27.6498704671321
1995-01-01	27.5072472177394
1996-01-01	27.4477498884948
1997-01-01	27.3497052783778
1998-01-01	27.2225652625355
1999-01-01	27.0755167798333
2000-01-01	26.9217448396403
2001-01-01	26.7826254284819
2002-01-01	26.6286332352021
2003-01-01	26.4998422018960
2004-01-01	26.4483326162525
2005-01-01	26.5077728855575
2006-01-01	26.6564100539105
2007-01-01	26.8606456245978
2008-01-01	27.1263840008753
2009-01-01	27.4707315613932
2010-01-01	27.9111162224787
2011-01-01	28.4655644377281
2012-01-01	29.1260434777869
2013-01-01	29.8438127092476
2014-01-01	30.5133645468708
2015-01-01	31.0556916999499
2016-01-01	31.5993564939840
2017-01-01	31.9864280376153