Annual % of cohort
1960 31.134920595741576
1961 31.53413623718217
1962 31.806418569560883
1963 32.221535741637624
1964 32.64785741918074
1965 32.94147416333586
1966 33.13197716988309
1967 33.01664075780359
1968 33.85505749148796
1969 34.10426781717482
1970 34.68029252605286
1971 35.248947747556485
1972 36.18754472610466
1973 36.89512084386194
1974 37.7809660692311
1975 38.82996699209818
1976 40.12898191069269
1977 41.27921799380733
1978 42.14649845844592
1979 42.63280933575351
1980 43.09642313359551
1981 43.32732657006086
1982 43.62845874127152
1983 43.97119169298326
1984 44.108376991980855
1985 44.24974600487246
1986 44.157639563782965
1987 44.63450058356153
1988 44.95362638693006
1989 45.20349542567851
1990 45.23131498932144
1991 45.017680183107835
1992 45.07350653987925
1993 45.1088434751028
1994 44.58782017113406
1995 44.63667751632
1996 44.67493796764006
1997 44.754446659425476
1998 44.635043650613326
1999 45.14682269496781
2000 45.57636341816768
2001 45.83424403966271
2002 46.19840803017262
2003 46.84796642062108
2004 47.233095470518464
2005 47.89603915701655
2006 48.44980198149393
2007 49.01310102855874
2008 49.34838553005748
2009 50.18449984723482
2010 50.6916519149333
2011 51.450504591251196
2012 51.94154983427587
2013 52.487580615618015
2014 52.86765208747535
2015 53.28912503537488
2016 53.69685746118923
2017 54.314462143623004
2018 54.67455335784653
2019 55.359270463618024
2020 54.54741751757416
2021 53.66941368913533
2022 55.0103649203026