1901-2000 Inches 1 2.38 2.23 0.15 83 46 1917 1983 1962 1963 normal 2 3.74 4.40 -0.66 29 100 1917 1985 1963 1962 bottom-third 1958 3 6.28 6.88 -0.60 35 94 1939 1985 1963 1962 bottom-third 4 9.15 9.50 -0.35 44 85 1952 2018 1963 1962 normal 5 11.76 12.28 -0.52 37 92 1952 2018 1963 1962 bottom-third 6 14.57 15.20 -0.63 37 92 1952 2004 1963 1962 bottom-third 7 16.82 18.12 -1.30 27 102 1952 2004 1963 1962 bottom-third 8 20.11 20.63 -0.52 43 86 1952 2015 1963 1962 bottom-third 1962 9 22.94 23.14 -0.20 52 77 1956 1973 1963 1961 normal 10 24.50 25.28 -0.78 42 87 1910 2019 1963 1962 bottom-third 11 26.93 27.59 -0.66 40 89 1910 2019 1963 1962 bottom-third 12 28.41 29.94 -1.53 31 97 1931 2019 1963 1962 bottom-third 2002 18 42.20 45.16 -2.96 21 107 1931 2019 1963 1962 bottom-third 24 54.21 59.90 -5.69 6 121 1931 2019 1956 1963 bottom-tenth 36 83.92 89.86 -5.94 8 118 1956 2019 1956 1963 bottom-tenth 1935 48 114.38 119.78 -5.40 14 111 1956 2019 1957 1963 bottom-third 60 143.45 149.66 -6.21 15 109 1956 2019 1957 1963 bottom-third