Year	% of cohort
1960	77.81671274059661
1961	78.43783819879891
1962	78.4434699644499
1963	78.8012025367268
1964	79.48868431464935
1965	79.71873327890218
1966	80.12258272054716
1967	80.51399570981211
1968	80.51306935440186
1969	80.55406290982562
1970	80.92536575581339
1971	81.37711011035219
1972	81.70135571579094
1973	82.01964887673978
1974	82.47357977767284
1975	82.89721178021423
1976	83.23816498109987
1977	83.64711166472296
1978	83.91071624481724
1979	84.33045078979875
1980	84.38492480825062
1981	84.86645274846252
1982	85.14956781882536
1983	85.22558860444329
1984	85.55244166032755
1985	85.68758432304804
1986	86.04016657912281
1987	86.2343599093907
1988	86.39872666408338
1989	86.68475089147516
1990	86.90302003040638
1991	87.02572647649181
1992	87.1833604799349
1993	87.16474486189057
1994	87.48800143243633
1995	87.54384887580645
1996	87.84612001247667
1997	88.11023269348043
1998	88.37111202286258
1999	88.4813953782003
2000	88.6620093634728
2001	88.8638199223027
2002	88.96811732395594
2003	89.05148163930534
2004	89.38186744655897
2005	89.45786939800679
2006	89.68553930218127
2007	89.84980442239114
2008	89.97213507320212
2009	90.14576692477434
2010	90.34812140465185
2011	90.38560747027097
2012	90.59662474695202
2013	90.67297109062002
2014	90.81746801503
2015	90.84080735007073
2016	90.90259470744478
2017	91.01985984765837
2018	91.09711937928746
2019	91.2345231975733
2020	90.55994030594259
2021	90.09298331342536
2022	90.60363593596503