1901-2000 Inches 1 1.70 3.94 -2.24 5 124 1913 1922 1913 1952 bottom-tenth 2 6.20 7.55 -1.35 40 89 1915 2006 1951 1952 bottom-third 3 10.87 11.12 -0.25 63 66 1911 2006 1951 1952 normal 4 18.90 14.63 4.27 115 14 1915 1922 1952 1945 top-third 5 21.76 17.51 4.25 112 17 1915 1984 1952 1945 top-third 6 26.68 20.80 5.88 118 11 1941 2006 1952 1936 top-tenth 7 32.47 24.35 8.12 122 6 1941 1984 1952 1937 top-tenth 8 34.63 28.33 6.30 115 13 1911 1984 1952 1937 top-tenth 9 36.77 31.86 4.91 105 23 1915 2006 1951 1952 top-third 10 40.22 35.66 4.56 99 29 1915 2006 1951 1952 top-third 11 43.72 39.43 4.29 93 35 1915 2006 1951 1952 top-third 12 46.09 43.44 2.65 81 47 1915 2006 1951 1952 normal 18 70.21 64.24 5.97 99 29 1965 2006 1951 1952 top-third 24 97.64 86.79 10.85 107 20 1911 2007 1952 1937 top-third 36 142.93 130.18 12.75 104 22 1911 2008 1952 1939 top-third 48 180.77 173.55 7.22 77 48 1967 2009 1952 1947 normal 60 217.80 216.87 0.93 57 67 1915 2010 1952 1948 normal