Year	Percent of People Ages 15 and Above
1976-01-01	9.43381023406982
1998-01-01	19.04496955871580
2003-01-01	24.00000000000000
2006-01-01	26.17654991149900
2010-01-01	31.09975051879880
2011-01-01	33.56093978881840
2015-01-01	33.06888961791990