1901-2000 Inches 1 2.75 2.90 -0.15 68 61 1963 1919 1958 1959 normal 2 5.07 6.37 -1.30 27 102 1897 1926 1958 1959 bottom-third 3 8.41 10.04 -1.63 22 107 1897 1926 1956 1959 bottom-third 4 11.94 14.04 -2.10 20 109 1953 1926 1956 1959 bottom-third 5 16.93 18.29 -1.36 32 97 1953 1926 1956 1959 bottom-third 6 21.27 22.56 -1.29 33 96 1930 2009 1956 1959 bottom-third 7 23.90 26.47 -2.57 27 102 1930 2009 1956 1959 bottom-third 8 26.37 30.28 -3.91 17 112 1930 2009 1953 1959 bottom-third 9 29.24 32.95 -3.71 18 111 1930 2019 1953 1959 bottom-third 10 31.81 36.00 -4.19 14 115 1930 2019 1953 1959 bottom-third 11 35.09 39.09 -4.00 17 111 1930 2019 1956 1959 bottom-third 12 38.00 42.23 -4.23 19 109 1963 2019 1956 1959 bottom-third 18 60.50 64.79 -4.29 21 107 1931 2019 1956 1959 bottom-third 24 77.79 84.46 -6.67 12 115 1931 2020 1954 1959 bottom-tenth 36 124.20 126.69 -2.49 40 86 1954 2020 1957 1959 bottom-third 48 170.05 168.97 1.08 58 67 1956 2021 1959 1958 normal 1900 60 207.28 211.20 -3.92 35 89 1956 2020 1957 1959 bottom-third