Year	% of relevant age group
1977	83.7197799682617
1978	84.2497787475586
1979	84.8153991699219
1980	85.3910369873047
1981	87.6860961914062
1982	84.3743591308594
1983	86.3603668212891
1984	86.9036026000977
1985	86.6768188476562
1986	86.9449005126953
1987	87.5119476318359
1988	88.1083221435547
1989	89.2379684448242
1990	89.6659393310547
1991	89.9845962524414
1992	90.2436676025391
1993	90.8593292236328
1994	90.9845733642578
1995	91.0590133666992
1996	91.3522262573242
1997	91.5358963012695
1998	91.8188095092773
1999	92.157600402832
2000	92.7794036865234
2001	93.0777893066406
2002	93.3256988525391
2003	93.6646270751953
2004	93.7475662231445
2005	93.8516082763672
2006	94.6735382080078
2007	94.9175491333008
2008	95.1569290161133
2009	95.5126266479492
2010	95.8478393554688
2011	96.2649536132812
2012	96.1322937011719
2013	95.942008972168
2014	95.4539794921875
2015	95.4249572753906
2016	95.399787902832
2017	95.1623992919922
2018	96.4111099243164
2019	95.8683166503906
2020	95.5722885131836
2021	96.6852493286133
2022	96.9609375