Year	% of people ages 15 and above
1981	84.7322006225586
1990	89.8252487182617
2001	92.9798278808594
2007	95.1546401977539
2009	95.5119934082031
2011	94.7702178955078
2015	96.6052169799805
2016	97.1270904541016
2022	97.5999984741211