Year	% of cohort
1960	42.76454889614924
1961	43.674328636671476
1962	44.289812441845044
1963	45.18273606653731
1964	46.405251692536716
1965	46.738114624597415
1966	46.99142712648965
1967	47.63590344873476
1968	48.18394660283761
1969	48.69216112558515
1970	49.34782349589116
1971	50.67423250924627
1972	51.36586043897364
1973	52.43839606904618
1974	53.25132978982973
1975	54.11169903365132
1976	54.27755453913359
1977	56.047370517581065
1978	57.106971636756995
1979	58.11430458627035
1980	59.226327021578875
1981	59.96743681591726
1982	60.608763100386675
1983	61.81411280967641
1984	62.77360670762537
1985	63.78650867589883
1986	65.45754706619782
1987	65.30873844388682
1988	64.8935627929129
1989	66.96475722270529
1990	67.67412504033922
1991	68.01285726088713
1992	68.40892992691334
1993	69.71545834932054
1994	71.08637140010212
1995	71.11611920837998
1996	71.59369914890543
1997	72.04443230732467
1998	71.78249901423817
1999	73.21126771453471
2000	74.03752061844209
2001	74.54832032142588
2002	75.03874431009254
2003	75.07884213114832
2004	75.32102725025598
2005	75.8120436585282
2006	76.52048709615966
2007	77.10107847231012
2008	77.41893071442853
2009	78.0689213184307
2010	78.44436799596704
2011	78.80251278459002
2012	78.8165930650256
2013	78.96198280096496
2014	79.51636970542008
2015	79.74207175087223
2016	80.31286615396702
2017	81.10772561587021
2018	81.27411121757831
2019	81.41589108097315
2020	80.03640347457622
2021	79.69640071173127
2022	80.27444861081722