Annual % of cohort
1960 76.6534491481802
1961 77.15908445499178
1962 76.64370575810372
1963 77.98444030787304
1964 78.86705364804288
1965 79.0480640311391
1966 79.7844987801692
1967 79.47001719818275
1968 79.69376318075723
1969 79.14573212303617
1970 79.56633694455898
1971 79.70327263213055
1972 80.45955481072163
1973 80.37017839275694
1974 80.91463470970024
1975 80.94294995160702
1976 81.02677746986969
1977 81.05057327888166
1978 81.15960127070746
1979 81.21354799429663
1980 80.73817415738363
1981 81.23632989280084
1982 81.35864614494426
1983 81.20720866484594
1984 81.33970230444856
1985 81.22802109574393
1986 81.69117930198205
1987 81.63444579744024
1988 81.95498240868059
1989 82.08957858221693
1990 82.22909851375715
1991 82.20062080100703
1992 82.43248504151428
1993 82.82766536165374
1994 83.08814709487163
1995 83.26350034823561
1996 83.53999081602453
1997 83.7823934205278
1998 84.2236770685197
1999 84.49335346772278
2000 85.01687478894037
2001 85.36624038522153
2002 85.46398546372012
2003 85.15808047280377
2004 85.26018919329589
2005 85.62572800805694
2006 86.00408309885457
2007 86.38689513846522
2008 87.01041967170924
2009 87.27065492752813
2010 87.63453237640125
2011 87.89152829416753
2012 87.95877857397026
2013 88.28343771252126
2014 88.51566111243672
2015 88.46048839010994
2016 88.89189917234468
2017 89.14563591092374
2018 89.23805093151316
2019 89.54265984636402
2020 89.3260993949748
2021 88.21388302307017
2022 88.37140107949239