1901-2000 Inches 1 6.68 3.48 3.20 128 2 1985 1983 1951 1952 top-tenth 2 11.62 7.26 4.36 127 3 1915 1983 1951 1952 top-tenth 3 13.85 10.15 3.70 121 9 2006 1983 1951 1939 top-tenth 4 18.67 13.51 5.16 125 5 1985 1998 1951 1937 top-tenth 5 23.39 16.79 6.60 122 7 1985 1937 1951 1937 top-tenth 6 28.71 19.78 8.93 127 2 1977 1998 1951 1952 top-tenth 1984 7 30.71 22.91 7.80 123 6 2002 1984 1951 1903 top-tenth 8 33.42 26.46 6.96 117 12 1931 2019 1951 1936 top-tenth 9 35.75 30.83 4.92 103 26 1931 2019 1951 1949 top-third 10 39.14 34.99 4.15 92 37 1931 2019 1951 1949 top-third 11 46.36 38.83 7.53 116 13 1931 2019 1951 1949 top-tenth 12 49.29 42.55 6.74 113 16 1931 2019 1951 1949 top-third 18 68.05 62.30 5.75 101 27 1931 2004 1951 1949 top-third 24 92.55 85.06 7.49 98 30 1931 2019 1951 1950 top-third 36 130.98 127.66 3.32 72 55 1967 2021 1948 1951 normal 48 185.20 170.21 14.99 109 17 1968 2021 1951 1939 top-third 60 228.36 212.58 15.78 102 23 1967 2021 1951 1940 top-third