1901-2000 Inches 1 2.45 2.78 -0.33 20 109 1930 1950,1958 1901 1913 bottom-third 2 5.30 5.70 -0.40 29 100 1930 1928 1911 1913 bottom-third 1978 3 7.78 8.62 -0.84 25 104 1988 2015 1911 1913 bottom-third 4 10.51 11.13 -0.62 35 94 1934 2015 1913 1912 bottom-third 5 12.36 13.64 -1.28 19 110 1936 1973 1911 1913 bottom-third 6 14.44 15.78 -1.34 20 109 1934 2019 1911 1913 bottom-third 1985 7 16.94 18.09 -1.15 27 102 1934 2019 1911 1913 bottom-third 8 19.25 20.44 -1.19 33 95 1931 2019 1911 1913 bottom-third 9 21.56 22.66 -1.10 36 92 1934 2019 1913 1912 bottom-third 10 24.08 24.83 -0.75 37 91 1934 2019 1913 1912 bottom-third 11 27.21 27.33 -0.12 57 71 1934 2019 1913 1912 normal 12 29.11 29.95 -0.84 42 86 1918 2019 1913 1912 bottom-third 18 43.91 45.74 -1.83 34 94 1931 2019 1911 1913 bottom-third 24 58.09 59.92 -1.83 35 92 1918 2020 1911 1913 bottom-third 1953 36 90.62 89.88 0.74 68 58 1956 2019 1913 1909 normal 48 116.69 119.78 -3.09 31 94 1956 2019 1913 1910 bottom-third 60 143.47 149.64 -6.17 14 110 1934 2019 1914 1913 bottom-third