Year	% of people ages 15 and above
1975	61.7246704101562
1976	61.9014091491699
1977	62.2448616027832
1978	63.0938186645508
1979	63.9889106750488
1980	64.5564880371094
1981	65.5097579956055
1982	66.2449722290039
1983	67.1964797973633
1984	68.0770111083984
1985	68.8633880615234
1986	69.5947113037109
1987	70.465461730957
1988	72.7680206298828
1989	73.4128799438477
1990	73.7061386108398
1991	74.5490188598633
1992	75.1483917236328
1993	75.6398468017578
1994	76.1330871582031
1995	76.6697387695312
1996	77.1768112182617
1997	80.0826416015625
1998	81.6732482910156
1999	82.0435180664062
2000	82.4351119995117
2001	82.7857971191406
2002	83.1944274902344
2003	83.8406524658203
2004	84.1974334716797
2005	84.2022094726562
2006	84.2480697631836
2007	85.3633193969727
2008	85.7301406860352
2009	86.1131286621094
2010	86.7403182983398
2011	87.0318603515625
2012	87.5256729125977
2013	87.5484085083008
2014	88.2257690429688
2015	88.2912673950195
2016	88.6774673461914
2017	88.8729934692383
2018	88.8655090332031
2019	88.9218063354492
2020	89.2565689086914
2021	89.4487533569336
2022	89.7009963989258