Year	% of cohort
1960	35.891548402280485
1961	36.71387277707617
1962	36.873346833002834
1963	38.72377472436469
1964	39.623863159780704
1965	40.366450812300194
1966	40.78424175552604
1967	41.19775507867873
1968	41.67952061296006
1969	42.31664801334183
1970	42.983510832298656
1971	43.91662724270331
1972	44.657247611711306
1973	45.01225278861359
1974	46.2304416253283
1975	46.79966119546628
1976	47.59510122017182
1977	49.426438436995525
1978	50.11688588043817
1979	51.81706552200083
1980	51.540232521320505
1981	49.98868090378527
1982	50.40038104866167
1983	52.85886785725584
1984	55.5251116563465
1985	56.66736913734323
1986	57.327569687219714
1987	58.74190209815412
1988	59.378691653064756
1989	61.797036447411166
1990	61.68829987882795
1991	63.8033195848254
1992	64.87370929759534
1993	65.49089927868577
1994	65.524109988671
1995	66.04608876344005
1996	66.7888824493375
1997	67.22787401453786
1998	67.7646544855698
1999	68.44151182118767
2000	68.97008160943615
2001	69.63848717773996
2002	70.29080826892599
2003	69.89074074384807
2004	70.65423113022115
2005	71.21795136106552
2006	71.31124470541333
2007	71.96336079933457
2008	72.62282047174642
2009	73.3978212970329
2010	73.66853382239864
2011	74.11020071679869
2012	73.93762774362521
2013	73.94816018191828
2014	74.61919611148859
2015	75.13282329968563
2016	75.38882647091116
2017	76.08843545382663
2018	76.57977253328151
2019	76.85621732739598
2020	74.50254564445041
2021	74.39916605594293
2022	75.16574147572389