Annual % of cohort
1960 38.58198098293838
1961 39.16224296548661
1962 39.6175996869201
1963 39.98920558927673
1964 40.84034141396224
1965 40.88360599447793
1966 40.429427841616736
1967 41.443073669708795
1968 41.90785987848924
1969 42.3010991226964
1970 42.73101814118933
1971 43.58873971778676
1972 43.13150575258877
1973 44.168149842071664
1974 44.07242943318282
1975 44.197017472593664
1976 45.19710792925869
1977 45.76405910835761
1978 46.138280175734884
1979 46.784849803129326
1980 47.33182404076806
1981 48.1954684813472
1982 48.50575426360565
1983 46.29132622739678
1984 46.336118429184666
1985 46.67165628319747
1986 47.50304462069227
1987 47.99060341127117
1988 47.10559780457233
1989 48.27808561632368
1990 48.07477565743305
1991 47.5315787339511
1992 46.73090018233458
1993 46.90292073900868
1994 47.424944321027525
1995 47.1156972102278
1996 46.39117992849855
1997 46.17375035966773
1998 45.239360862339524
1999 46.02287027578548
2000 46.14684860120601
2001 45.93219185437996
2002 46.15386550547503
2003 46.4770967197217
2004 47.05302230852131
2005 48.05725534747875
2006 49.566899221834554
2007 50.92490444241321
2008 52.30402659068912
2009 54.1232839025745
2010 55.693843011104434
2011 57.46226069671276
2012 58.99834719283888
2013 60.42151358087248
2014 61.719459089402534
2015 62.717185736151734
2016 63.92315284355428
2017 64.71993088288613
2018 65.68659486480801
2019 66.42216104937083
2020 65.45876234751617
2021 63.722279266552704
2022 64.44498222766673