Year	% of cohort
1960	36.94992159988853
1961	37.31834689395377
1962	37.802113690653385
1963	38.20298400095375
1964	38.764509818783914
1965	37.58159624505989
1966	38.43195792747893
1967	39.020705033719814
1968	41.035784064758204
1969	41.59276439505067
1970	41.13148397056437
1971	40.10927308936623
1972	43.153552380244115
1973	43.82222825697098
1974	44.53935211011577
1975	45.51631465720989
1976	46.3859449322252
1977	47.366633619245725
1978	48.36305598562695
1979	49.4161395968749
1980	50.505339723975624
1981	51.59585366839885
1982	52.58973288545847
1983	53.59722420558917
1984	54.506562858696384
1985	55.203490826906524
1986	55.940524888445815
1987	56.60650204582101
1988	57.369469854891314
1989	57.89539320565831
1990	58.68578365738997
1991	58.9141871366562
1992	59.81646461424245
1993	60.097015300083285
1994	60.66752262651808
1995	61.13383997516216
1996	61.580125837058354
1997	62.640753436443454
1998	63.733131778502795
1999	64.80638036248244
2000	65.48175316423134
2001	66.27781531027576
2002	67.18306755260924
2003	68.06110874896227
2004	68.72716212343651
2005	69.5744373228153
2006	70.55956472679428
2007	71.17213795598067
2008	71.90547266259027
2009	72.38641587412013
2010	73.19493259684948
2011	73.65853765662128
2012	74.18960360499426
2013	74.62069483965642
2014	74.83467853375936
2015	75.12425416092306
2016	75.49652103318259
2017	75.9855118833346
2018	76.42454425713183
2019	76.91356326998083
2020	75.76567376192898
2021	71.4485248475056
2022	72.9367093172103