1901-2000 Inches 1 5.76 4.63 1.13 94 35 1976 1964 1969 1968 top-third 2 11.21 8.97 2.24 106 23 1976 1996 1969 1968 top-third 1948 3 13.87 11.51 2.36 99 30 1976 1996 1969 1968 top-third 4 15.75 12.93 2.82 105 24 1976 1996 1969 1968 top-third 1951 5 15.96 13.73 2.23 96 33 1936 1996 1969 1968 top-third 6 16.66 14.46 2.20 96 33 1936 1996 1969 1968 top-third 7 18.51 16.18 2.33 98 31 1976 1996 1969 1968 top-third 8 20.06 18.32 1.74 90 39 1935 1996 1969 1968 top-third 2006 9 22.76 20.67 2.09 93 36 1976 1996 1969 1968 top-third 10 25.37 23.93 1.44 85 44 1976 1996 1969 1968 normal 11 27.73 27.54 0.19 66 63 1935 1996 1969 1968 normal 12 36.19 32.07 4.12 104 25 1929 1996 1969 1964 top-third 18 48.14 46.58 1.56 79 49 1929 1996 1967 1969 normal 24 66.02 64.19 1.83 78 50 1930 1996 1969 1968 normal 1949 36 102.20 96.33 5.87 105 22 1930 1997 1969 1955 top-third 48 133.31 128.33 4.98 96 30 1931 1998 1969 1964 top-third 60 162.98 160.34 2.64 78 47 1932 1999 1969 1968 normal