1925-2000 Inches 1 4.37 4.37 0.00 43 56 1941 2018 1926 1927 normal 1996 2 7.00 7.66 -0.66 27 72 1977 2022 1926 1927 bottom-third 3 9.25 10.00 -0.75 24 75 1957 2014 1926 1925 bottom-third 1987 4 10.88 12.11 -1.23 17 82 1957 1998 1926 1925 bottom-third 5 12.76 14.00 -1.24 20 79 1957 1998 1926 1925 bottom-third 6 15.53 16.23 -0.70 33 66 1957 1998 1927 1926 bottom-third 7 17.84 18.55 -0.71 33 66 1957 1963 1926 1927 bottom-third 8 21.01 21.28 -0.27 39 60 1969 1963 1925 1926 normal 9 24.97 24.38 0.59 55 43 1969 1944 1927 1926 normal 10 27.26 27.76 -0.50 39 59 1969 1944 1927 1926 normal 11 32.42 32.15 0.27 52 46 1969 1944 1927 1926 normal 1985 12 36.50 36.70 -0.20 47 51 1969 1944 1927 1926 normal 18 52.36 52.92 -0.56 35 63 1969 1944 1927 1926 normal 24 80.65 73.26 7.39 88 9 1969 1930 1927 1927 top-tenth 36 -99 109.83 -99 -99 -99 1974 1931 normal 48 -99 146.33 -99 -99 -99 1972 1932 normal 60 -99 182.81 -99 -99 -99 1976 1932 normal