Year	% of cohort
1960	73.76162284583266
1961	74.13474678132377
1962	73.94739725198613
1963	74.79049832051535
1964	75.49917189940966
1965	75.47619942890762
1966	75.84435736224468
1967	75.69981735450394
1968	75.95854938147194
1969	75.55771822843866
1970	75.80599730285577
1971	76.04301432790217
1972	76.2937588645892
1973	76.334937656811
1974	76.73762967994736
1975	76.63186418337924
1976	76.6084140133546
1977	76.81359694356524
1978	76.91507896895385
1979	76.79185572208337
1980	76.7079508840039
1981	77.0714803347516
1982	77.36662162515523
1983	77.36073471500883
1984	77.18306194841416
1985	77.26534267291784
1986	78.53898647335677
1987	78.5886806154573
1988	78.50367494558891
1989	79.15832683155085
1990	79.10228956440965
1991	79.06108141561944
1992	78.67461028043762
1993	77.8426018704111
1994	77.75843567702829
1995	77.91246893193477
1996	78.42889363337719
1997	78.81644282101091
1998	79.29187498843581
1999	78.82936099559215
2000	79.33457904459489
2001	79.6927254542237
2002	79.66649723135323
2003	79.8168270867278
2004	80.41756040271854
2005	80.62669130367632
2006	81.31530945963468
2007	81.91774623904142
2008	82.3184550237096
2009	82.84817642605078
2010	83.04104227521073
2011	83.7020652662184
2012	84.09886495596234
2013	84.55518527988367
2014	85.12406958958275
2015	85.65970015298626
2016	86.24548431640346
2017	86.83088384451533
2018	87.09092274271636
2019	87.49344102892478
2020	84.33925610630223
2021	83.67729038653138
2022	84.64854610809533