Annual % of cohort
1960 78.42497836110235
1961 79.04716182295304
1962 78.8221780039462
1963 78.6372626108216
1964 78.94219567263926
1965 79.1685836610252
1966 79.34734712469232
1967 79.69700964281733
1968 79.34548225235906
1969 79.769296904025
1970 79.92454931448408
1971 80.38934604857401
1972 80.62883159355015
1973 80.8543576005777
1974 81.5027071508679
1975 82.1399780472271
1976 82.50527388038783
1977 82.87704257803011
1978 83.1309557654486
1979 83.67491696719824
1980 83.65289877708805
1981 83.94011264842314
1982 84.31647233286513
1983 84.42763041033203
1984 84.56580124539883
1985 84.62389558181722
1986 84.7744271093227
1987 84.89046859110363
1988 84.89099902516047
1989 85.18953667912844
1990 85.48345475671421
1991 85.60409335512863
1992 85.86868033852555
1993 85.7285031109444
1994 85.87392805941535
1995 85.94180688243954
1996 86.19811394047493
1997 86.45761940680967
1998 86.71899686006581
1999 86.75408338038243
2000 86.86295053277799
2001 86.91912788971867
2002 87.00564785324231
2003 87.05825238942532
2004 87.40194067670471
2005 87.44676357593272
2006 87.63243533602306
2007 87.88429745105084
2008 87.98161231628093
2009 88.0881600554332
2010 88.40518485231192
2011 88.38270167219567
2012 88.42720290365281
2013 88.4107425617027
2014 88.26422962494398
2015 88.14870081330164
2016 87.96019022705583
2017 87.98238488714539
2018 88.159012585844
2019 88.24177467255082
2020 87.02442178559646
2021 85.99898899321836
2022 87.0651507650488