Year	% of cohort
1960	35.334539488381694
1961	35.84697992439016
1962	36.2353787493921
1963	36.63928584723908
1964	37.32442812559071
1965	37.490801826961956
1966	37.323209819784154
1967	37.86870598920891
1968	38.50380250946253
1969	38.848078712518486
1970	39.35063225537123
1971	40.09789241849898
1972	40.23253478137415
1973	41.139748005005444
1974	41.46075655193768
1975	41.975182553132335
1976	43.10416162783068
1977	43.91506875135108
1978	44.496547091556955
1979	45.08251581721605
1980	45.598567787625576
1981	46.20891443262089
1982	46.52375955756584
1983	45.353636535939074
1984	45.44201868199455
1985	45.706485860067666
1986	46.1768476167327
1987	46.663903868065546
1988	46.25565021785453
1989	47.063558641533604
1990	46.95232709808318
1991	46.538956313811894
1992	46.07528375937243
1993	46.192433713768374
1994	46.30146773093459
1995	46.13391990175553
1996	45.71089566977512
1997	45.61023113974443
1998	44.999030783139524
1999	45.67434811669589
2000	45.91987539824897
2001	45.89322734268992
2002	46.17157839677772
2003	46.62453979069101
2004	47.12459940478094
2005	47.99318288179503
2006	49.12313819951568
2007	50.1660191712077
2008	51.13165600244177
2009	52.56189383343262
2010	53.712292598199454
2011	55.08238427284077
2012	56.20731479382553
2013	57.28741345113718
2014	58.2254956364179
2015	58.9988800893922
2016	59.89142069872569
2017	60.61642866132436
2018	61.34405306818643
2019	62.06099555902898
2020	61.15854271890206
2021	59.76081397861455
2022	60.727008863298735