1901-2000 Inches 1 1.40 1.52 -0.12 58 72 1966 1906 1956 1958 normal 2005 2 2.81 2.61 0.20 86 44 1966 1905 1957 1958 normal 1931 3 3.77 3.67 0.10 79 51 1966 1980 1956 1958 normal 4 4.58 4.74 -0.16 58 71 1977 1979 1956 1958 normal 1956 5 5.45 5.81 -0.36 49 80 1977 1979 1955 1958 normal 1926 6 6.16 7.14 -0.98 31 98 1977 1909 1955 1958 bottom-third 1931,1968 7 7.51 8.57 -1.06 36 93 1902 1942 1956 1958 bottom-third 8 9.03 10.58 -1.55 26 103 1901 1942 1954 1958 bottom-third 9 11.20 12.68 -1.48 26 103 1901 1942 1956 1958 bottom-third 1956 10 12.59 14.23 -1.64 32 97 1901 1942 1957 1958 bottom-third 11 14.68 16.25 -1.57 35 94 1901 1942 1957 1958 bottom-third 12 16.41 18.13 -1.72 37 92 1935 1942 1957 1958 bottom-third 18 25.11 25.26 -0.15 67 61 1935 1942 1957 1958 normal 24 41.00 36.17 4.83 119 9 1977 1943 1958 1948 top-tenth 36 55.79 54.22 1.57 84 43 1977 1943 1958 1950 normal 48 71.97 72.23 -0.26 62 64 2004 1987 1958 1951 normal 60 86.25 90.23 -3.98 41 84 1957 1987 1958 1952 bottom-third