Year	% of cohort
1960	37.143204647533175
1961	42.796008500984314
1962	51.18079000848616
1963	52.031799569030944
1964	53.0349736063455
1965	53.33400554074643
1966	54.49128404991892
1967	55.62261692615484
1968	56.42176893800062
1969	57.26839054224414
1970	58.15837824630743
1971	59.397312127617056
1972	60.49961147636074
1973	61.82890536557948
1974	62.970954579959184
1975	64.03292780238542
1976	65.07770315010002
1977	66.18133412490688
1978	67.04035569934818
1979	68.02113534812345
1980	68.88150199241504
1981	69.73788158669572
1982	70.53235923788789
1983	71.34819664436549
1984	71.99335396943162
1985	72.616116039527
1986	73.39277655353314
1987	73.9653473534398
1988	74.42976557821251
1989	74.95522519460613
1990	75.21553435604405
1991	75.38962376006434
1992	76.15696300083987
1993	76.83946249557012
1994	77.1209214206218
1995	77.73292792010243
1996	78.03298162063307
1997	78.54039411626152
1998	79.16537225124809
1999	79.2965618782642
2000	79.9258009923833
2001	80.88504302835932
2002	81.23611809196966
2003	81.58741617504394
2004	81.68928343064351
2005	82.46170133941946
2006	82.94597318153765
2007	83.2766915099066
2008	83.37663901056689
2009	83.98835880599339
2010	84.32083705899221
2011	84.71371678018032
2012	85.14591242863877
2013	85.53772897053977
2014	85.91576960541057
2015	86.16565607850379
2016	86.43726778868721
2017	86.70952671454941
2018	87.01233398017234
2019	87.20816797431448
2020	85.9177794398223
2021	85.27940529431775
2022	86.06431390853716