Annual % of cohort
1960 63.92575333174657
1961 64.4701030213193
1962 64.20271441132398
1963 64.47820229308176
1964 65.23285183004889
1965 65.2376100605029
1966 65.53056105153865
1967 65.73648556179259
1968 65.53187073371232
1969 65.20925307140095
1970 65.78380486588514
1971 66.18491104894896
1972 66.51682740799622
1973 66.86031445884608
1974 67.43044358427356
1975 67.57728030168596
1976 67.83119918264482
1977 68.18595225800182
1978 68.33765896154547
1979 68.70112240077721
1980 68.71055514211952
1981 69.45692294053602
1982 70.02591137331937
1983 70.02769358515486
1984 70.31050693038223
1985 70.73589546985295
1986 71.67059999050821
1987 72.00519547058917
1988 72.17745355475543
1989 72.34084694860323
1990 72.48286751923516
1991 72.60798920444245
1992 72.66839221559754
1993 72.10470489890677
1994 72.10176355441679
1995 72.40419324315157
1996 73.41083767942408
1997 74.41584454507465
1998 74.91457309827062
1999 74.83006920544268
2000 75.1250213591503
2001 75.48717786842123
2002 75.6195472930687
2003 75.77598018681785
2004 76.42951470421683
2005 76.68257226249648
2006 77.45980879543009
2007 78.04609696055718
2008 78.43884332254797
2009 78.98752847880482
2010 79.40470424545875
2011 79.91933912494744
2012 80.34629198892706
2013 80.72275624227143
2014 81.05007783706061
2015 81.2348159791513
2016 81.54740118100977
2017 81.96165149273519
2018 82.13444636743743
2019 82.50516310974359
2020 80.95497091348332
2021 79.98422339371452
2022 81.06541856863213