Year	% of cohort
1960	29.42073059624344
1961	29.73159119726996
1962	30.126422943910033
1963	30.02752407704978
1964	30.87879157999833
1965	30.834638706224812
1966	30.7024937799243
1967	31.609102386897145
1968	32.15991139867393
1969	32.532833700678985
1970	32.99246428941168
1971	33.55468772601038
1972	33.32015263229726
1973	34.47384478628646
1974	34.85517932164808
1975	35.32038789382629
1976	36.165554285426225
1977	36.6357275140051
1978	36.802049655212095
1979	37.452033881033216
1980	37.906531896748014
1981	38.164975408842324
1982	37.97884454784904
1983	36.54324272837015
1984	35.88212912150255
1985	36.48092047086975
1986	37.36822854269877
1987	38.11902435471803
1988	37.6913395315076
1989	39.882158626945
1990	39.67605170931429
1991	40.11534776387095
1992	39.89985662390454
1993	40.95609276879652
1994	42.3964070643017
1995	41.0536878300669
1996	41.03877242328908
1997	41.683122726822894
1998	40.383689756725495
1999	42.1835495823519
2000	44.32319562280726
2001	45.053034231430935
2002	45.62158476903134
2003	47.39092259746534
2004	47.982437055762624
2005	48.7129375563424
2006	50.07145926563622
2007	50.99215255335919
2008	51.76382338628297
2009	52.75649629425509
2010	53.56317819334677
2011	54.35984520451976
2012	54.332186967600876
2013	54.610032562237656
2014	55.1581787070424
2015	55.517165022681176
2016	56.21290999643681
2017	56.76726239274092
2018	57.140136461603056
2019	57.95619238355809
2020	56.42385801059119
2021	54.95642066107103
2022	55.887735861405105