Year	% of cohort
1960	76.95208907861054
1961	77.393507270137
1962	77.27435714329833
1963	77.77907050726077
1964	78.50517865785105
1965	78.56124058862875
1966	78.89993770093399
1967	78.96062822268578
1968	79.06153216089737
1969	78.7052454429096
1970	79.14644108760098
1971	79.3825522414619
1972	79.67104899476051
1973	79.82940389594161
1974	80.20711554310932
1975	80.25043571150273
1976	80.37966657696994
1977	80.76656242444938
1978	80.88416700656728
1979	80.96480527427022
1980	81.0391181597236
1981	81.38168495506214
1982	81.68939058931068
1983	81.7537313977515
1984	81.83746822171273
1985	81.97219566293222
1986	82.72906190517621
1987	82.88748342520402
1988	82.94422736237604
1989	83.37964255159415
1990	83.41400044828721
1991	83.47687256535613
1992	83.44870925620543
1993	83.0633458905513
1994	83.18311976700969
1995	83.33335275346276
1996	83.72834974033785
1997	84.04619910225956
1998	84.3805662265379
1999	84.21886163267328
2000	84.5621503388068
2001	84.83837522981115
2002	84.88810820635783
2003	85.00791252587732
2004	85.49521643555845
2005	85.65363198202824
2006	86.10424417660789
2007	86.46167269247645
2008	86.7026940713729
2009	87.0282960179281
2010	87.21301242536065
2011	87.58760354479858
2012	87.86156272350988
2013	88.1459642583709
2014	88.53804258220005
2015	88.77747317208213
2016	89.13454081965877
2017	89.47951655100515
2018	89.62665180610023
2019	89.93662733651284
2020	88.21783179856814
2021	87.79078053437719
2022	88.59247494244784