Year	% of cohort
1960	55.35642158116513
1961	56.126385314244175
1962	56.68590307437001
1963	57.26858880177305
1964	57.99003548921061
1965	58.63042589337525
1966	59.21339228983903
1967	59.77968992626725
1968	60.340178495010484
1969	60.852781683600746
1970	60.79657023816624
1971	62.230197646284154
1972	62.8186767292658
1973	63.74645032899887
1974	64.38469836890496
1975	65.30127192536793
1976	65.67683677468261
1977	66.72555236328081
1978	67.36370127673068
1979	67.98293330907734
1980	68.61092306677821
1981	69.45491673165958
1982	69.98759425021746
1983	70.754328191599
1984	71.36622962028507
1985	71.69496118693203
1986	72.70062128037856
1987	73.38174691949011
1988	73.99617882374864
1989	74.59125537654779
1990	75.15560755666142
1991	75.66277050440941
1992	76.14644713182598
1993	76.61799669838004
1994	77.09109808351576
1995	77.59636742709144
1996	78.14813738761599
1997	78.67777451930785
1998	79.00828257851299
1999	79.6357209249208
2000	80.27556706854585
2001	80.67581477985021
2002	81.12473810828517
2003	81.28055731851799
2004	81.75015935151468
2005	82.22328609109034
2006	82.5097280307043
2007	82.72637987510204
2008	83.02042839012826
2009	83.29577277982801
2010	83.10929888249363
2011	83.863446834972
2012	84.24346266312921
2013	84.54015228785931
2014	84.8179494652761
2015	84.96821678062153
2016	85.05825826252403
2017	85.15592850742028
2018	85.3353037893337
2019	85.60795336653146
2020	82.39243854185584
2021	80.64081068772262
2022	82.925886822697