Year	% of cohort
1960	75.90226951606569
1961	76.52397802645396
1962	76.5778094692524
1963	76.92975341534927
1964	77.59632883657424
1965	77.87742514982843
1966	78.31044327647173
1967	78.72639724822419
1968	78.75677883849329
1969	78.82886537829457
1970	79.21282042563041
1971	79.67596536486487
1972	80.07653532791781
1973	80.42410131129232
1974	80.91720373683373
1975	81.32565209014571
1976	81.69017332771571
1977	82.15574781076552
1978	82.465653464742
1979	82.9268805855036
1980	83.02365194844944
1981	83.53553700946783
1982	83.8418292177499
1983	83.98262150319017
1984	84.36181354395501
1985	84.4594739826141
1986	84.86069890423505
1987	85.10248091758189
1988	85.33814527542961
1989	85.61233386607937
1990	85.86364496942464
1991	86.05502558634056
1992	86.3439559962908
1993	86.4413287990114
1994	86.7046579671399
1995	86.8266814171351
1996	87.14016977093144
1997	87.42076697055316
1998	87.65978835024025
1999	87.73910161600345
2000	88.05490333891265
2001	88.2592931283598
2002	88.41985677999851
2003	88.5291547203747
2004	88.82400772922654
2005	88.93478578182503
2006	89.11861021486924
2007	89.2662064171794
2008	89.39801488508611
2009	89.55076585851737
2010	89.77023311014419
2011	89.79050334795109
2012	90.0079762209389
2013	90.12267429735988
2014	90.21552153168622
2015	90.18408158793908
2016	90.18112988992804
2017	90.24586961035992
2018	90.31378303883524
2019	90.46673111753189
2020	89.24259335528475
2021	88.88765397737836
2022	90.12478411116716