1901-2000 Inches 1 1.52 2.34 -0.82 20 109 1903 1914 1947 1946 bottom-third 2 3.46 3.51 -0.05 66 63 1980 1921 1947 1943 normal 1990 3 4.69 4.56 0.13 75 54 2011 1921 1947 1943 normal 4 4.98 5.31 -0.33 55 74 2011 1941 1947 1943 normal 1987 5 5.81 6.04 -0.23 71 58 2011 1941 1947 1941 normal 1928 6 7.47 6.68 0.79 93 36 2011 1941 1947 1941 top-third 7 8.04 7.29 0.75 94 35 2011 1941 1947 1941 top-third 1957 8 8.93 8.03 0.90 95 33 2011 1941 1947 1941 top-third 9 9.61 8.68 0.93 93 35 2011 1941 1947 1941 top-third 10 10.30 9.81 0.49 83 45 2011 1941 1947 1941 normal 11 10.85 11.52 -0.67 56 72 2011 1905 1947 1943 normal 12 13.63 13.99 -0.36 65 63 1974 1905 1947 1943 normal 18 17.99 20.68 -2.69 35 93 2013 1942 1947 1943 bottom-third 24 26.40 27.99 -1.59 50 77 1957 1942 1947 1943 normal 36 36.65 41.95 -5.30 23 103 2013 1987 1947 1945 bottom-third 48 48.76 55.92 -7.16 18 107 1954 1988 1947 1945 bottom-third 60 60.39 69.90 -9.51 10 114 1957 1988 1948 1947 bottom-tenth