Year	% of cohort
1960	66.98568695929713
1961	67.54786847629718
1962	67.02174040667524
1963	67.37300362116866
1964	68.24138798399545
1965	68.31545320990168
1966	68.80023087945908
1967	68.64599489480213
1968	68.6107281766999
1969	67.829027806002
1970	68.77160043850616
1971	68.73305471680084
1972	69.43102611090393
1973	69.59830158350024
1974	70.05363010304495
1975	69.79157085893976
1976	70.0185973608805
1977	70.42907149972459
1978	70.43904185135845
1979	70.74772424726416
1980	70.63166253548512
1981	71.17799592298732
1982	71.65998073565989
1983	71.5191932576476
1984	71.86187220326073
1985	72.00194497937751
1986	72.48392412051352
1987	72.85491234912237
1988	73.19450375582666
1989	73.29469578642833
1990	73.30036137422343
1991	73.21523828144215
1992	73.67279876954923
1993	74.12472950705019
1994	74.5698228824622
1995	74.8424771968159
1996	75.43744402171568
1997	76.14098980216892
1998	76.67254585910088
1999	77.09766035103242
2000	77.79175152952139
2001	78.24524999245821
2002	78.53928276317625
2003	78.71494746077201
2004	79.31581262549649
2005	79.6675894964543
2006	80.12002306011235
2007	80.46579236303712
2008	80.9449662283642
2009	81.32289210352346
2010	81.79763920418367
2011	82.26696825249543
2012	82.56059924672806
2013	83.04175773816814
2014	83.508897099771
2015	83.43963651817624
2016	83.86618535966218
2017	84.15702820884708
2018	84.31101628465385
2019	84.7782255299698
2020	84.29652290818363
2021	83.9276175046882
2022	84.70578796889217