Year	Percent of People Ages 15 and Above
1975-01-01	49.85330
1976-01-01	50.00655
1977-01-01	50.51745
1978-01-01	51.04162
1979-01-01	51.58586
1980-01-01	51.48585
1981-01-01	52.22207
1982-01-01	53.05178
1983-01-01	53.50155
1984-01-01	54.01775
1985-01-01	54.53955
1986-01-01	55.05527
1987-01-01	55.91705
1988-01-01	56.51964
1989-01-01	57.16152
1990-01-01	57.80083
1991-01-01	58.30530
1992-01-01	59.22150
1993-01-01	59.95408
1994-01-01	60.65868
1995-01-01	61.33435
1996-01-01	62.07624
1997-01-01	62.71210
1998-01-01	65.84399
1999-01-01	66.48792
2000-01-01	66.67575
2001-01-01	67.18486
2002-01-01	68.01937
2003-01-01	68.84452
2004-01-01	69.55523
2005-01-01	69.40597
2006-01-01	69.41222
2007-01-01	69.83738
2008-01-01	70.79360
2009-01-01	71.43398
2010-01-01	72.71435
2011-01-01	72.24664
2012-01-01	74.21019
2013-01-01	74.65994
2014-01-01	75.36975
2015-01-01	75.83826
2016-01-01	76.35028