Annual % of cohort
1960 46.542033859586596
1961 47.321642449588744
1962 47.82083929961609
1963 48.34964706101016
1964 49.060092960445715
1965 49.53754255514353
1966 50.20359167650199
1967 50.66938209887131
1968 51.10132402154191
1969 51.56537102188512
1970 51.673701820624295
1971 52.828183371661375
1972 53.264329439075695
1973 54.0892873504829
1974 54.74671829917837
1975 55.43060645306753
1976 55.655510411077636
1977 56.32798941363686
1978 56.73220996389738
1979 57.18435641531643
1980 57.81968462823568
1981 58.49294913262254
1982 58.907492706866826
1983 59.78697231742402
1984 60.37153769903317
1985 60.98033236772458
1986 61.927676074082534
1987 62.55812503037785
1988 63.15607234758967
1989 63.47824353273784
1990 63.66039367475727
1991 64.17405187274115
1992 64.64234242397904
1993 65.09805704354086
1994 65.71944886617473
1995 66.09317268178985
1996 66.69498381597883
1997 67.2437271728839
1998 67.70212293180315
1999 68.28675034427701
2000 68.50048855453085
2001 68.81244702189312
2002 69.36606033045219
2003 69.72094125340257
2004 70.20311231736308
2005 70.87201133914532
2006 71.15317591309456
2007 71.36273589996203
2008 71.7134154259457
2009 72.07135813651288
2010 71.92758483842329
2011 72.7034336512132
2012 73.07097110886356
2013 73.58505531865265
2014 74.01641795424104
2015 73.99284620970181
2016 73.75337822344476
2017 74.13536131400072
2018 74.28048139656522
2019 74.6018744791845
2020 69.61499194624479
2021 67.44346676586987
2022 71.51251468716563