Year	% of cohort
1960	54.53197411501583
1961	54.9307205635612
1962	55.05522931964849
1963	55.6178877801638
1964	56.1683809038361
1965	56.25273294608339
1966	56.38744127854577
1967	56.3191114793141
1968	56.38305774612412
1969	56.12375571759598
1970	56.18066483203276
1971	56.65834218038601
1972	56.90516890597223
1973	57.21398681808471
1974	57.24302027962146
1975	57.26704990246087
1976	57.43660020515323
1977	57.29909759622858
1978	57.369881829138215
1979	57.220805056804764
1980	57.44246431519846
1981	57.75358573179363
1982	58.123551390664474
1983	58.27674346554106
1984	58.218035678706045
1985	58.78054441381458
1986	60.29053863343558
1987	60.388903113041565
1988	60.075063433489476
1989	60.43338889557674
1990	60.13429746934408
1991	59.45056787430156
1992	57.389378755811734
1993	56.839824467602035
1994	57.53693365620848
1995	57.420637142317695
1996	58.09293449002843
1997	58.77906623232285
1998	59.7211576716908
1999	59.39840595580615
2000	60.25911275569344
2001	60.82786547154621
2002	61.12962815374018
2003	61.62632930454868
2004	62.09855309336383
2005	62.1745843796019
2006	63.18233341725492
2007	63.77250575394321
2008	64.47853371626726
2009	65.68147984296115
2010	66.49114945902268
2011	67.06295697921564
2012	68.00149494893556
2013	68.8046349971459
2014	69.53151556844118
2015	70.39343956317472
2016	71.2092049254927
2017	72.08874320838308
2018	72.53539674035542
2019	73.03909663020355
2020	69.00152192403137
2021	69.20610039462294
2022	70.6716985723254