1901-2000 Inches 1 1.06 1.36 -0.30 49 81 1956 1906 1931 1930 normal 2 3.06 2.58 0.48 90 40 1972 2019 1931 1927 top-third 3 4.18 3.79 0.39 86 44 1972 1980 1931 1927 normal 4 5.67 4.90 0.77 96 33 1977 2023 1931 1927 top-third 5 7.23 5.97 1.26 98 31 1977 2023 1931 1927 top-third 6 8.21 7.18 1.03 93 36 1977 2005 1931 1927 top-third 7 8.90 8.24 0.66 87 42 1977 2005 1931 1928 top-third 8 9.70 9.44 0.26 74 55 1977 1983 1931 1928 normal 9 10.44 10.43 0.01 71 58 1977 1983 1931 1928 normal 10 10.78 11.16 -0.38 59 70 1977 1983 1931 1928 normal 11 11.52 12.31 -0.79 48 81 2021 1983 1931 1929 normal 12 12.54 13.55 -1.01 46 83 2021 1907 1931 1930 normal 18 16.78 20.72 -3.94 19 109 2021 1907 1925 1931 bottom-third 1975 24 25.03 27.04 -2.01 40 88 2022 1984 1926 1931 bottom-third 1972 36 37.74 40.52 -2.78 41 86 1961 1984 1931 1930 bottom-third 48 50.18 53.94 -3.76 37 89 1903 1985 1905 1931 bottom-third 60 65.16 67.39 -2.23 50 75 1957 1986 1906 1931 normal