Year	% of cohort
1960	35.85506525624685
1961	36.0848620423561
1962	36.642644568033866
1963	36.862862879150185
1964	37.53913837089042
1965	37.64405518515567
1966	37.71042753659944
1967	37.61576742829569
1968	38.234155551221455
1969	38.31719979999662
1970	39.07964570346513
1971	39.972593378389924
1972	40.04501877583142
1973	40.87509532215884
1974	41.1135218403929
1975	41.2524857633105
1976	41.88262142963984
1977	42.486941828477256
1978	42.49744013264087
1979	42.7731942954782
1980	42.85597298379039
1981	42.93549663658537
1982	42.63595349749217
1983	42.07733843577287
1984	41.56022297080314
1985	41.858117357406215
1986	42.7480734686914
1987	42.98718976715489
1988	42.393718659357155
1989	43.837099616920014
1990	43.64464542995875
1991	43.89856099218118
1992	43.87222267717068
1993	44.230955076927565
1994	45.12023508285828
1995	44.41716999820983
1996	44.47401908074058
1997	44.910389642125196
1998	44.44403488931153
1999	45.33961345221796
2000	46.61761085078688
2001	46.93110631462999
2002	47.4405818355083
2003	47.66854364628733
2004	47.97020550636272
2005	48.43348531260797
2006	49.30824459830461
2007	49.98775121561172
2008	50.26469497751101
2009	51.98042146880249
2010	52.37886340687874
2011	53.4246565762728
2012	53.55020800997913
2013	53.90402519121532
2014	54.26834176257848
2015	54.891344435629584
2016	55.2604473152194
2017	55.84744026594407
2018	56.31022852937846
2019	56.833264771768036
2020	55.10566131928739
2021	53.65824923460806
2022	54.66208645498454