Year	% of cohort
1970	36.3292083740234
1971	35.6380081176758
1972	35.6258697509766
1973	35.7278785705566
1974	36.7281303405762
1975	37.9410095214844
1976	38.8844604492188
1977	40.251838684082
1978	41.4371109008789
1979	42.6302299499512
1980	43.2455101013184
1981	44.5729103088379
1982	46.1193618774414
1983	47.510570526123
1984	49.0791397094727
1985	50.6122093200684
1986	52.3224983215332
1987	58.669979095459
1988	58.86669921875
1989	58.5229988098145
1990	58.3304481506348
1991	58.0363807678223
1992	57.8223114013672
1993	57.6625785827637
1994	57.5401916503906
1995	58.5155487060547
1996	59.493408203125
1997	60.4326095581055
1998	61.1810493469238
1999	62.4243507385254
2000	61.329288482666
2001	65.1804122924805
2002	66.2972106933594
2003	67.4163513183594
2004	68.6497802734375
2005	69.461540222168
2006	70.3546371459961
2007	71.1580123901367
2008	71.7720489501953
2009	73.2262420654297
2010	73.3133392333984
2011	75.4475173950195
2012	76.3421478271484
2013	79.046989440918
2014	87.9278335571289
2015	86.392578125
2016	82.7963104248047
2017	82.0015487670898
2018	82.540641784668
2019	91.1566696166992
2020	90.9814224243164
2021	92.2091293334961