1901-2000 Inches 1 5.51 4.17 1.34 103 26 1910 1968 1938 1925 top-third 2 8.34 7.71 0.63 78 51 1988 1968 1937 1938 normal 3 10.68 10.34 0.34 72 57 1988 1968 1937 1938 normal 4 11.65 12.14 -0.49 53 76 1910 2013 1937 1938 normal 5 13.37 13.17 0.20 67 62 1988 2013 1937 1938 normal 6 15.15 14.32 0.83 77 52 1988 2013 1937 1938 normal 7 16.34 15.59 0.75 72 56 1988 2013 1937 1938 normal 8 18.79 17.57 1.22 80 48 1987 1993 1937 1938 normal 9 20.13 20.00 0.13 62 66 1987 2013 1937 1938 normal 10 27.14 23.77 3.37 102 26 1958 2017 1937 1938 top-third 11 32.03 27.56 4.47 110 18 1931 2019 1938 1929 top-third 12 36.44 31.39 5.05 110 18 1931 2017 1938 1929 top-third 18 56.43 45.64 10.79 124 4 1911 2020 1938 1939 top-tenth 24 69.95 62.70 7.25 107 20 1931 2020 1938 1914 top-third 36 98.29 94.01 4.28 76 50 1911 2019 1938 1929 normal 48 125.75 125.23 0.52 57 68 1934 2020 1938 1930 normal 60 160.56 156.47 4.09 74 50 1934 2020 1938 1929 normal 1929