Year	% of people ages 15 and above
1974	78.0356826782227
1975	78.0552825927734
1976	78.4175109863281
1977	78.8338165283203
1978	79.2869033813477
1979	79.6965026855469
1980	80.024040222168
1981	80.4641571044922
1982	80.8554534912109
1983	81.2618865966797
1984	81.6431732177734
1985	82.0110321044922
1986	82.3716888427734
1987	82.6669692993164
1988	83.1728973388672
1989	83.6286926269531
1990	83.9512100219727
1991	84.5799713134766
1992	85.1857681274414
1993	85.8156433105469
1994	86.416130065918
1995	87.0254821777344
1996	87.3589782714844
1997	87.6940765380859
1998	88.0670013427734
1999	88.387336730957
2000	88.6526336669922
2001	88.8542633056641
2002	89.0097427368164
2003	89.8312072753906
2004	89.7725830078125
2005	90.2740097045898
2006	90.227783203125
2007	90.8601837158203
2008	91.1209716796875
2009	91.404426574707
2010	91.3952178955078
2011	91.9824676513672
2012	92.2344131469727
2013	92.2822875976562
2014	92.7413330078125
2015	92.9098892211914
2016	93.4037933349609
2017	93.4733581542969
2018	93.6103363037109
2019	94.0715713500977
2020	94.0983810424805
2021	94.3630981445312
2022	94.5129013061523