Year	% of cohort
1960	36.38059404541402
1961	42.60442237500162
1962	51.87616609390246
1963	52.760342113446335
1964	53.93655242535055
1965	54.282121797345646
1966	55.62011042967983
1967	56.907632857109874
1968	57.61257124856384
1969	58.59330342960539
1970	59.595922878267224
1971	60.821288994609716
1972	61.77263587641527
1973	63.221786270111025
1974	64.33938186498705
1975	65.46626220807434
1976	66.65835260112239
1977	67.73451805706387
1978	68.76043944920035
1979	69.74222834918321
1980	70.52413756018029
1981	71.39758113541451
1982	72.14708274810454
1983	72.8285332890976
1984	73.49803540869519
1985	74.11876508401154
1986	74.77289723776053
1987	75.31869235057245
1988	75.81204144002882
1989	76.32646535659384
1990	76.62190264438163
1991	76.69494449992217
1992	77.52659770125562
1993	78.35043124560278
1994	78.56427274436277
1995	79.0094417792678
1996	79.30772290925245
1997	79.84526853205183
1998	80.5036437364094
1999	80.62031631035612
2000	81.1693312494563
2001	82.23093500412877
2002	82.62567894599687
2003	83.28027633745289
2004	83.19623080987542
2005	83.96909613084983
2006	84.413254647659
2007	84.72233929428567
2008	84.45420103790183
2009	85.34971441375376
2010	85.55892650624583
2011	85.85071852150787
2012	86.19989318995879
2013	86.55436068446821
2014	86.8402907422647
2015	87.04878115368176
2016	87.24970290273095
2017	87.43538612685333
2018	87.75933202966243
2019	87.91013281625655
2020	87.77928008249587
2021	87.25493757206681
2022	87.80941521520421