Year	% of cohort
1960	33.75142294803238
1961	34.51727418486562
1962	35.9223745312865
1963	36.64920386657971
1964	37.4016839951292
1965	38.221460063593106
1966	39.320730491178956
1967	38.98698141260027
1968	40.38665862471427
1969	41.29093710519048
1970	42.989651505678516
1971	38.87071373320332
1972	44.264124707694684
1973	44.854032202825195
1974	45.13958059351022
1975	45.79040167104084
1976	46.22515106678566
1977	46.4069024817919
1978	46.768652501464324
1979	47.11789827113522
1980	47.93367802230278
1981	48.667560495076174
1982	48.887752624140106
1983	49.39701765255743
1984	49.58692770532807
1985	49.809618416718
1986	49.86005172363736
1987	49.39776855526126
1988	49.23223010859551
1989	49.273507918793946
1990	49.11845054322449
1991	48.88822367833463
1992	48.640196989878795
1993	48.21516846178824
1994	47.804884694606734
1995	47.084909974402336
1996	47.093651781913735
1997	46.84599137885168
1998	47.2738662805338
1999	47.905922305077375
2000	48.686806729274885
2001	49.00218384743915
2002	49.5412852238624
2003	49.93589797207088
2004	50.222030003795474
2005	50.140280331322046
2006	51.27792180531341
2007	51.41940559845089
2008	51.73704710275408
2009	52.21551746851469
2010	52.76796665800743
2011	53.33230342080477
2012	53.58589253223106
2013	54.02170585094268
2014	54.18860203449131
2015	54.52921025238979
2016	54.94761875766935
2017	55.24463246116002
2018	55.541493536567245
2019	56.01373076052338
2020	54.45644340329147
2021	53.511980085485604
2022	55.062636317271966