Year	% of cohort
1960	38.58198098293838
1961	39.16224296548661
1962	39.6175996869201
1963	39.98920558927673
1964	40.84034141396224
1965	40.88360599447793
1966	40.429427841616736
1967	41.443073669708795
1968	41.90785987848924
1969	42.3010991226964
1970	42.73101814118933
1971	43.58873971778676
1972	43.13150575258877
1973	44.168149842071664
1974	44.07242943318282
1975	44.197017472593664
1976	45.19710792925869
1977	45.76405910835761
1978	46.138280175734884
1979	46.784849803129326
1980	47.33182404076806
1981	48.1954684813472
1982	48.50575426360565
1983	46.29132622739678
1984	46.336118429184666
1985	46.67165628319747
1986	47.50304462069227
1987	47.99060341127117
1988	47.10559780457233
1989	48.27808561632368
1990	48.07477565743305
1991	47.5315787339511
1992	46.73090018233458
1993	46.90292073900868
1994	47.424944321027525
1995	47.1156972102278
1996	46.39117992849855
1997	46.17375035966773
1998	45.239360862339524
1999	46.02287027578548
2000	46.14684860120601
2001	45.93219185437996
2002	46.15386550547503
2003	46.4770967197217
2004	47.05302230852131
2005	48.05725534747875
2006	49.566899221834554
2007	50.92490444241321
2008	52.30402659068912
2009	54.1232839025745
2010	55.693843011104434
2011	57.46226069671276
2012	58.99834719283888
2013	60.42151358087248
2014	61.719459089402534
2015	62.717185736151734
2016	63.92315284355428
2017	64.71993088288613
2018	65.68659486480801
2019	66.42216104937083
2020	65.45876234751617
2021	63.722279266552704
2022	64.44498222766673