Year	Percent of People Ages 15 and Above
1981-01-01	25.7251892089844
1998-01-01	42.6993103027344
2005-01-01	49.8736381530762
2006-01-01	54.1512107849121
2008-01-01	55.5263710021973
2009-01-01	54.8926391601563
2010-01-01	55.3751907348633
2011-01-01	54.7380218505859
2012-01-01	56.7643394470215
2013-01-01	55.5949897766113
2014-01-01	56.9771499633789