Year	% of cohort
1960	41.63541160249258
1961	42.55963927600417
1962	42.856368935315984
1963	44.147972237350544
1964	44.968016624872234
1965	45.706917124769674
1966	46.45246058361253
1967	47.08205184509494
1968	47.49629581535275
1969	48.33955969071202
1970	49.10106223957113
1971	49.954017719044
1972	50.640369647758135
1973	51.7634698735704
1974	52.84828764384091
1975	53.862293563880066
1976	54.225116092297185
1977	56.08969835565258
1978	56.733406749249156
1979	58.81697645964654
1980	59.95594847081968
1981	60.72139393359705
1982	61.62194886147768
1983	63.9754048917513
1984	65.28122896735887
1985	66.44181802477547
1986	67.50033329642685
1987	68.16433896760782
1988	68.86904121111986
1989	69.446212745353
1990	69.35267481154165
1991	71.26803638684213
1992	72.0809059879202
1993	72.50543252520124
1994	73.01589825089333
1995	73.5067103555549
1996	74.17245878986591
1997	74.59266278652677
1998	74.92008632237778
1999	75.62566614750101
2000	76.40618917447985
2001	77.00709736218079
2002	77.57073862340187
2003	77.2181571518537
2004	78.23375859719302
2005	79.0407270474313
2006	79.48188000477721
2007	79.86750836496354
2008	79.97710189608691
2009	80.22674619044571
2010	80.7424743509243
2011	81.21098818649375
2012	81.12678903522685
2013	81.22381009386608
2014	81.85481608570757
2015	82.16690928952171
2016	82.855726944642
2017	83.81421450271158
2018	83.89178379686648
2019	83.91487075839834
2020	82.04239998228849
2021	82.03521197699301
2022	82.6243507916397