1925-2000 Inches 1 6.32 4.57 1.75 94 5 1969 1925 1937 1925 top-tenth 2 11.32 8.95 2.37 93 6 1941 2022 1937 1938 top-tenth 3 14.86 12.23 2.63 87 12 1968 2022 1937 1930 top-third 4 17.77 14.57 3.20 92 7 1968 2012 1937 1928 top-tenth 5 20.50 16.68 3.82 94 5 1969 2012 1937 1938 top-tenth 6 22.38 18.57 3.81 94 5 1969 1961 1937 1938 top-tenth 7 24.22 20.80 3.42 93 6 1969 2016 1937 1930 top-tenth 8 26.45 23.12 3.33 89 10 1969 1928 1937 1930 top-tenth 9 29.20 25.85 3.35 88 11 1969 1928 1937 1932 top-third 10 31.18 28.92 2.26 73 25 1969 1928 1937 1935 top-third 1992 11 34.07 32.29 1.78 60 38 1969 1944 1936 1937 normal 12 38.06 36.68 1.38 57 41 1969 1944 1936 1937 normal 18 56.90 55.22 1.68 58 40 1969 1944 1936 1937 normal 24 81.54 73.25 8.29 90 7 1969 1930 1937 1932 top-tenth 36 115.11 109.82 5.29 64 32 1974 1930 1936 1937 top-third 48 154.30 146.31 7.99 71 24 1969 1932 1937 1932 top-third 60 187.15 182.77 4.38 51 43 1972 1932 1937 1933 normal