Annual % of cohort
1960 37.93144316094688
1961 41.246088928491
1962 46.03387073046763
1963 46.66027865532425
1964 47.502575288278535
1965 47.41794807926489
1966 48.31639324597107
1967 49.21296464661481
1968 50.24610220019418
1969 50.984178040501305
1970 51.44526852265707
1971 52.008270753907645
1972 53.38469952097238
1973 54.505930485428294
1974 55.36698244293459
1975 56.330164880426864
1976 57.26479243485519
1977 58.32857124517978
1978 59.24934781668763
1979 60.21497622638978
1980 61.095532464639724
1981 61.94617407710325
1982 62.716858003553625
1983 63.386984077470714
1984 64.04563554251666
1985 64.64095888902386
1986 65.36890874463923
1987 65.95687299900885
1988 66.40458488748766
1989 66.97688338492931
1990 67.32073489860889
1991 67.45564243638938
1992 68.05686878953162
1993 68.54711831481782
1994 68.85275849894607
1995 69.21302042739454
1996 69.4756380389011
1997 70.04494944704896
1998 70.60485086861146
1999 71.07309998827519
2000 71.62544010609959
2001 72.3709982437604
2002 72.86465327259464
2003 73.43116647933721
2004 73.71548336125592
2005 74.45462574917879
2006 75.08717824542086
2007 75.52158685578318
2008 75.72170305056449
2009 76.42405463038376
2010 76.8451408022581
2011 77.352472881382
2012 77.77376943842953
2013 78.17570300343256
2014 78.50758396285002
2015 78.75563398869303
2016 79.06441241711731
2017 79.39320334524251
2018 79.70825559776692
2019 79.97796778710732
2020 78.81400798981636
2021 76.83985565690381
2022 77.86139742465073