Annual % 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