1901-2000 Inches 1 1.80 0.87 0.93 120 9 1929 1909 1925 1909 top-tenth 2 2.06 1.65 0.41 95 34 1929 1946 1925 1920 top-third 3 2.16 2.22 -0.06 72 57 1929 1982 1924 1925 normal 1967,1973 4 2.62 2.82 -0.20 56 73 1995 1983 1924 1925 normal 1905 5 3.24 3.36 -0.12 66 63 2020 1983 1924 1925 normal 6 3.51 4.05 -0.54 48 81 2020 1982 1924 1925 normal 1989,1996 7 4.12 5.03 -0.91 37 92 2020 1998 1924 1925 bottom-third 8 5.70 5.94 -0.24 69 60 1924 1941 1924 1925 normal 9 6.01 7.01 -1.00 42 87 1966 1998 1924 1925 bottom-third 10 7.11 8.12 -1.01 43 86 1966 1998 1924 1925 bottom-third 11 7.73 9.28 -1.55 32 97 1966 1998 1924 1925 bottom-third 12 8.42 10.30 -1.88 30 98 1924 1998 1924 1925 bottom-third 18 15.14 14.35 0.79 90 38 1929 1983 1924 1925 top-third 2010 24 21.51 20.59 0.92 88 39 1929 1983 1925 1923 top-third 36 27.23 30.91 -3.68 28 98 1955 1984 1926 1925 bottom-third 48 38.44 41.15 -2.71 41 84 1929 1998 1924 1925 bottom-third 60 50.83 51.38 -0.55 65 59 2003 1984 1924 1925 normal 1901