1901-2000 Inches 1 1.31 5.28 -3.97 4 126 1930 1991 1930 1975 bottom-tenth 1903 2 11.34 11.24 0.10 71 59 1925 1980 1972 1975 normal 3 14.87 16.25 -1.38 50 80 2007 1991 1972 1975 normal 4 18.71 21.54 -2.83 36 94 1986 1991 1970 1975 bottom-third 5 22.51 27.11 -4.60 27 102 1986 1983 1967 1975 bottom-third 6 26.88 31.32 -4.44 34 95 1986 1983 1967 1975 bottom-third 7 32.22 34.28 -2.06 53 76 1904 1983 1972 1975 normal 8 36.36 37.71 -1.35 53 76 1904 1983 1970 1975 normal 9 42.44 41.64 0.80 71 58 1904 1983 1972 1975 normal 1922 10 48.12 46.66 1.46 73 56 1925 1983 1971 1975 normal 11 53.48 50.83 2.65 82 47 1925 1983 1972 1975 normal 12 61.69 55.59 6.10 98 31 1925 1983 1972 1975 top-third 18 99.13 87.03 12.10 105 23 1918 1980 1972 1975 top-third 24 128.33 111.26 17.07 115 13 1926 1980 1973 1975 top-tenth 36 197.03 166.95 30.08 121 6 1954 2020 1974 1975 top-tenth 48 266.85 222.43 44.42 124 2 1955 2021 1975 1976 top-tenth 60 324.72 277.77 46.95 122 3 1956 2022 1975 1976 top-tenth