1901-2000 Inches 1 1.58 1.07 0.51 103 27 1956 1907 1901 1899 top-third 2 3.21 2.18 1.03 114 16 1956 1998 1901 1901 top-third 1901 3 3.70 3.35 0.35 88 42 2022 1907 1900 1901 top-third 1949 4 4.70 4.36 0.34 81 48 1977 1907 1900 1901 normal 5 5.27 5.25 0.02 76 53 1977 1907 1900 1901 normal 6 6.51 6.02 0.49 83 46 1977 2005 1900 1901 normal 7 6.81 6.59 0.22 77 52 1953 1983 1900 1901 normal 8 8.30 7.18 1.12 92 37 1953 1983 1901 1897 top-third 1985 9 8.54 7.72 0.82 89 40 2021 1983 1901 1897 top-third 10 8.70 8.42 0.28 80 49 2021 1983 1901 1897 normal 11 9.46 9.39 0.07 71 58 2021 1983 1901 1899 normal 12 10.33 10.31 0.02 70 59 1929 1907 1900 1901 normal 18 17.54 16.32 1.22 93 35 1934 1984 1901 1897 top-third 24 22.01 20.61 1.40 90 38 1930 1984 1901 1902 top-third 36 29.93 30.88 -0.95 57 70 1931 1985 1900 1901 normal 48 41.00 41.11 -0.11 72 54 1931 1985 1901 1902 normal 60 49.94 51.36 -1.42 55 70 1963 1986 1900 1901 normal