1901-2000 Inches 1 4.63 3.09 1.54 116 13 1925 2004 2005 2004 top-tenth 2 6.73 5.68 1.05 97 32 1925 2011 2005 2004 top-third 3 8.94 7.73 1.21 97 32 1958 2011 2005 2004 top-third 4 10.74 9.23 1.51 98 31 1958 2011 2005 2004 top-third 5 13.74 11.04 2.70 114 15 1958 2013 2005 2004 top-third 6 15.70 13.03 2.67 108 20 1958 2013 2005 2004 top-third 1997 7 19.85 15.60 4.25 123 5 1987 2004 2005 2004 top-tenth 8 21.58 18.31 3.27 107 21 1925 2020 2005 2004 top-third 9 25.16 21.69 3.47 106 22 1925 2020 2005 2004 top-third 10 27.75 24.82 2.93 100 28 1931 2020 2005 2004 top-third 1979 11 31.44 27.88 3.56 102 26 1931 2017 2005 2004 top-third 12 34.31 31.14 3.17 96 32 1931 2020 2005 2004 top-third 18 46.55 44.16 2.39 82 45 1931 2020 2003 2005 normal 24 63.88 62.26 1.62 63 64 1931 2020 2004 2005 normal 36 99.39 93.40 5.99 92 34 1936 2020 2005 2004 top-third 48 127.72 124.54 3.18 65 60 1937 2020 2001 2005 normal 60 163.73 155.69 8.04 89 35 1934 2020 2005 2004 top-third