Annual % of cohort
1960 34.52511796445734
1961 35.3308950976242
1962 35.72083943774517
1963 37.033297642963355
1964 38.39217672639078
1965 38.690245119751516
1966 38.690251292446185
1967 39.025335346817805
1968 39.76768550755108
1969 40.01507782769073
1970 40.67740991302596
1971 42.066430175497786
1972 42.8741686732162
1973 43.561235903035076
1974 44.633440149981276
1975 45.0214502843717
1976 45.68778420091149
1977 47.699661632513326
1978 48.822522068640154
1979 49.86412258588772
1980 50.048379380058726
1981 50.24337033107641
1982 50.4697683398816
1983 51.74335211736409
1984 52.84364160917161
1985 53.98283896174373
1986 55.174478359249285
1987 55.27298776831034
1988 54.4657869579677
1989 57.750089646215194
1990 58.40280708853281
1991 59.584292058038
1992 60.26184460177483
1993 61.59728524420783
1994 63.28305198791414
1995 62.826773812519754
1996 63.53001134852896
1997 63.902249288134826
1998 63.56908996654559
1999 65.4903307165491
2000 66.03918888225311
2001 66.65418897732386
2002 67.1212338195115
2003 66.75174504798045
2004 66.66193767786531
2005 67.05856596445551
2006 67.69286503598519
2007 68.37185946429221
2008 69.21728465102899
2009 70.26596454893516
2010 70.71741892456015
2011 71.06935277345734
2012 70.75027857372757
2013 70.6909958765153
2014 71.29195437721219
2015 71.92177254146499
2016 72.01423236249154
2017 72.8559233520136
2018 73.33976075489147
2019 73.86083836564697
2020 71.87385561342147
2021 71.54404214696345
2022 72.15734251373131