Annual % of cohort
1960 65.26753819200724
1961 65.87381761956715
1962 65.65831987954655
1963 65.76529909687976
1964 66.44176736405969
1965 66.5262355476406
1966 66.85244178056962
1967 67.22801239682384
1968 67.03123068566441
1969 66.85327555793474
1970 67.386747143456
1971 67.95139413001165
1972 68.22526928553914
1973 68.63900692048584
1974 69.22170110114749
1975 69.5649266008346
1976 69.99818449165373
1977 70.43785996206063
1978 70.65975163177963
1979 71.16201670020146
1980 71.23687629719542
1981 71.9226329842242
1982 72.41780232805627
1983 72.5176847641656
1984 72.9533780505528
1985 73.22667149906316
1986 73.81055086860043
1987 74.15999576774705
1988 74.40635105322447
1989 74.72395754513684
1990 74.99947322523424
1991 75.12084844229106
1992 75.2346659303503
1993 75.36008851587316
1994 75.8351558337963
1995 76.04230467084733
1996 76.75902826762646
1997 77.57038178596322
1998 78.05532450258133
1999 78.34471498792945
2000 78.74336489618148
2001 79.13334682245393
2002 79.36126648528189
2003 79.5458751179532
2004 80.1350404100288
2005 80.2409005830399
2006 80.71114130290583
2007 81.02338163474103
2008 81.36435205732434
2009 81.84521434485917
2010 82.24767957421511
2011 82.5427220691903
2012 82.86658399290052
2013 83.08637469732047
2014 83.34259044833735
2015 83.42223582622788
2016 83.60810642571393
2017 83.80313106133413
2018 83.91270313934933
2019 84.17200672611412
2020 82.89862599532454
2021 82.24101659299379
2022 83.21127484771424