1901-2000 Inches 1 2.95 2.90 0.05 73 56 1963 1919 1974 1973 normal 2 7.53 6.37 1.16 96 33 1897 1926 1974 1972 top-third 3 12.43 10.04 2.39 111 18 1897 1926 1974 1970 top-third 4 15.33 14.04 1.29 84 45 1953 1926 1974 1972 normal 5 19.42 18.29 1.13 74 55 1953 1926 1974 1973 normal 6 23.54 22.56 0.98 72 57 1930 2009 1972 1974 normal 7 27.43 26.47 0.96 67 62 1930 2009 1971 1974 normal 8 33.64 30.28 3.36 98 31 1930 2009 1974 1973 top-third 9 37.49 32.95 4.54 106 23 1930 2019 1974 1973 top-third 10 41.35 36.00 5.35 111 18 1930 2019 1974 1973 top-third 11 44.49 39.09 5.40 111 17 1930 2019 1974 1973 top-third 12 48.13 42.23 5.90 110 18 1963 2019 1972 1974 top-third 18 72.89 64.79 8.10 112 16 1931 2019 1972 1974 top-third 24 96.94 84.46 12.48 120 7 1931 2020 1973 1974 top-tenth 36 149.31 126.69 22.62 122 4 1954 2020 1974 1975 top-tenth 48 193.33 168.97 24.36 120 5 1956 2021 1974 1975 top-tenth 60 229.98 211.20 18.78 112 12 1956 2020 1974 1975 top-tenth