Year	% of cohort
1960	34.70466315425138
1961	35.16999031930341
1962	35.63481696398598
1963	35.876531183759994
1964	36.6283401953603
1965	36.79597543470176
1966	36.58608331276532
1967	37.50887807004627
1968	37.97509831428859
1969	38.3911438061416
1970	38.82067274750402
1971	39.4058544930873
1972	39.00132461124092
1973	39.998042757811206
1974	40.08899266846282
1975	40.593007774997595
1976	41.647319807673064
1977	42.21868243735537
1978	42.62442918951632
1979	43.273754869510206
1980	43.85941418125966
1981	44.3185268280924
1982	44.65849805458801
1983	43.003211796998436
1984	42.971503096565954
1985	43.26730137984659
1986	44.266089105718386
1987	45.277698250742986
1988	44.81576155948217
1989	45.948437226273875
1990	45.90408704082557
1991	45.62644866298141
1992	45.422450047577236
1993	46.00341054841614
1994	46.41676716162773
1995	46.93508808906699
1996	46.92269292543655
1997	47.25527958153579
1998	46.981852866547534
1999	48.11427829588626
2000	48.714240055514026
2001	49.1795458852663
2002	49.74629886346855
2003	50.51934708202486
2004	51.173080416983524
2005	52.24595902551994
2006	53.530871046401266
2007	54.638360201272484
2008	55.6405542900791
2009	56.98038992145703
2010	57.50340360659862
2011	59.27263728050447
2012	60.42813477683227
2013	61.62042950278151
2014	62.51919698913491
2015	63.41647894020502
2016	64.49252518122755
2017	65.13582023564447
2018	65.95589903083439
2019	66.70664325248372
2020	65.45235417236202
2021	64.40759325837755
2022	65.34932856826573