1901-2000 Inches 1 0.66 1.07 -0.41 38 91 1956 1907 1915 1920 bottom-third 1971 2 1.21 2.18 -0.97 23 106 1956 1998 1914 1920 bottom-third 1913 3 2.52 3.35 -0.83 39 90 2022 1907 1913 1920 bottom-third 2004 4 3.60 4.36 -0.76 47 81 1977 1907 1917 1920 normal 5 4.47 5.25 -0.78 47 81 1977 1907 1917 1920 normal 6 6.00 6.02 -0.02 70 58 1977 2005 1920 1917 normal 7 6.25 6.59 -0.34 62 66 1953 1983 1918 1920 normal 8 7.36 7.18 0.18 77 51 1953 1983 1920 1919 normal 9 7.73 7.72 0.01 75 53 2021 1983 1920 1919 normal 1992 10 8.41 8.42 -0.01 71 57 2021 1983 1920 1919 normal 11 9.30 9.39 -0.09 68 60 2021 1983 1920 1919 normal 12 10.24 10.31 -0.07 65 63 1929 1907 1920 1919 normal 18 16.04 16.32 -0.28 59 68 1934 1984 1920 1919 normal 1898 24 18.66 20.61 -1.95 38 89 1930 1984 1913 1920 bottom-third 1926 36 29.84 30.88 -1.04 54 72 1931 1985 1913 1920 normal 48 40.42 41.11 -0.69 65 60 1931 1985 1920 1919 normal 60 48.86 51.36 -2.50 48 76 1963 1986 1913 1920 normal