Year	% of cohort
1960	32.705996785224784
1961	33.251796654352
1962	33.96413165702162
1963	34.075900286824925
1964	34.913954769992976
1965	34.869904419675485
1966	35.43986983447166
1967	36.0832061898065
1968	36.59071593307707
1969	36.883785448494194
1970	35.48474408491299
1971	29.260665941542413
1972	37.49712589337701
1973	38.27693214023466
1974	38.38911187517682
1975	38.919500902409794
1976	39.73477994259914
1977	40.28847212819354
1978	40.50858982347608
1979	40.99222505797106
1980	41.71854297169925
1981	42.046935934717
1982	42.10374759064477
1983	41.52976139974049
1984	41.329591303956875
1985	41.7097868777647
1986	42.41810830564051
1987	43.00226970591561
1988	42.824800647569525
1989	43.97132594079336
1990	44.4419200282788
1991	44.0429627126823
1992	44.68897437513231
1993	45.2838043528423
1994	46.42451028832817
1995	46.711909007811435
1996	46.882008392123446
1997	47.69036826980268
1998	47.927603534491226
1999	49.867604425317936
2000	50.577733306876986
2001	51.08737667491934
2002	51.47150316888312
2003	52.02938015391383
2004	52.44899401896649
2005	53.20514073779941
2006	53.97498596884942
2007	54.403620123373344
2008	54.52426966894649
2009	55.66587107464383
2010	56.54958712345526
2011	57.45256105738829
2012	57.73367008131006
2013	57.942215230619915
2014	58.71838606697678
2015	59.31930936375796
2016	60.118616301530075
2017	60.7623292709108
2018	61.456668973357324
2019	61.949859147138326
2020	60.61327724846597
2021	59.16866989411797
2022	60.57684026093728