1901-2000 Inches 1 0.89 1.14 -0.25 43 87 1981 1969 1964 1967 bottom-third 2016 2 2.24 2.39 -0.15 54 75 1961 1969 1964 1967 normal 3 3.26 4.22 -0.96 32 97 2003 2016 1964 1967 bottom-third 4 6.15 6.52 -0.37 49 80 1977 2020 1965 1967 normal 5 8.04 9.90 -1.86 25 104 1977 2020 1964 1967 bottom-third 6 10.88 13.46 -2.58 20 109 1977 2020 1964 1967 bottom-third 7 12.95 17.05 -4.10 6 123 1977 2020 1940 1967 bottom-tenth 8 19.66 21.07 -1.41 39 90 1977 2011 1964 1967 bottom-third 9 21.69 24.46 -2.77 21 108 1977 2020 1964 1967 bottom-third 10 25.09 26.96 -1.87 34 95 1977 2020 1967 1966 bottom-third 11 26.28 28.68 -2.40 27 102 1911 2020 1964 1967 bottom-third 12 27.22 29.70 -2.48 27 102 1911 2020 1964 1967 bottom-third 18 40.23 43.18 -2.95 27 101 1911 2020 1965 1967 bottom-third 24 54.66 59.40 -4.74 22 106 1931 2020 1965 1967 bottom-third 36 90.62 89.04 1.58 62 65 1935 2020 1966 1967 normal 48 119.74 118.69 1.05 57 69 1937 2020 1967 1963 normal 60 144.70 148.35 -3.65 35 90 1934 2020 1965 1967 bottom-third