Annual % of cohort
1960 29.67300927710254
1961 29.91842135528963
1962 30.72463176186682
1963 30.81390678389159
1964 31.31298663085732
1965 31.443988278603527
1966 31.42556741738769
1967 31.341544680611022
1968 32.00608817504197
1969 32.31505172870155
1970 33.180365789563645
1971 33.80468840302197
1972 33.97890689424528
1973 35.143702364414274
1974 35.42723751549917
1975 35.948115770163874
1976 36.69693943165019
1977 37.22985958367232
1978 37.43671763007665
1979 38.120373728474306
1980 38.618896044179934
1981 39.1064123400583
1982 39.30304705444928
1983 38.093840633982474
1984 37.81062678809831
1985 38.00574241699607
1986 38.38969400496729
1987 38.44399263229295
1988 37.94944256372351
1989 39.02481874097252
1990 38.597902247189985
1991 38.445855987958915
1992 37.91352057832973
1993 37.97626693467041
1994 38.764080688760195
1995 38.50570446362201
1996 38.166437632571785
1997 38.332520822140914
1998 37.586264213486984
1999 38.537022130795954
2000 39.84907929393123
2001 40.144804728266564
2002 40.47293934154893
2003 41.08356001890561
2004 41.70544271488543
2005 42.52528691014343
2006 43.66295828477517
2007 44.50312502802851
2008 45.354017746205365
2009 46.40198160706468
2010 47.373929809475015
2011 48.40156013262469
2012 49.29855492071132
2013 50.00879383959247
2014 50.70498197900823
2015 51.34001914553844
2016 52.203800489055475
2017 52.85866842761272
2018 53.431202222311306
2019 54.058819406811644
2020 52.52254657649088
2021 50.767493971906866
2022 51.927465775624526