Year	% of cohort
1960	33.36671080300982
1961	33.82837113489588
1962	34.237660571941475
1963	34.69354490558444
1964	35.314446545864094
1965	35.49715383957585
1966	35.68802130162516
1967	35.91995907895705
1968	36.66550981221005
1969	37.06750317199712
1970	37.639514836838664
1971	38.498333238017
1972	38.8637073919739
1973	39.90639389156794
1974	40.57381729537163
1975	41.129680707318386
1976	42.00800896396093
1977	42.942549416476496
1978	43.46726133654678
1979	43.939135932035654
1980	44.42353540999507
1981	45.01015075546895
1982	45.2463350691137
1983	44.93798303255231
1984	44.73380785728061
1985	44.830514135878545
1986	45.373374958114056
1987	44.88407611589021
1988	44.323658343044585
1989	45.35099859202759
1990	45.364300876049484
1991	45.03103899173322
1992	44.805789412202934
1993	45.34994403189342
1994	46.17679834721136
1995	45.7369711185539
1996	45.557739680072835
1997	45.609735270841085
1998	45.01676562062564
1999	46.368827086990976
2000	46.970539831694865
2001	47.38923625569688
2002	47.81178332364532
2003	48.46482536245034
2004	49.001098837944326
2005	49.85899887027861
2006	50.84159436478592
2007	51.55144568412785
2008	52.159207913543526
2009	53.24983315290717
2010	54.139166097230834
2011	55.164877812644285
2012	55.99506122983669
2013	56.90181866219325
2014	57.715485695826125
2015	58.32024190231736
2016	59.061854967667166
2017	59.920688459430835
2018	60.56176511802422
2019	61.22895350564169
2020	60.1546454933273
2021	59.20582956230856
2022	60.41668268332851