1901-2000 Inches 1 3.83 3.94 -0.11 69 60 1913 1922 1999 1998 normal 1950 2 8.48 7.55 0.93 89 40 1915 2006 1999 1998 top-third 3 14.88 11.12 3.76 112 17 1911 2006 1999 1998 top-third 4 18.63 14.63 4.00 112 17 1915 1922 1999 1998 top-third 5 22.19 17.51 4.68 115 14 1915 1984 1999 1998 top-third 6 26.08 20.80 5.28 115 14 1941 2006 1999 1998 top-third 7 27.98 24.35 3.63 101 27 1941 1984 1999 1998 top-third 8 31.08 28.33 2.75 95 33 1911 1984 1999 1998 top-third 9 35.10 31.86 3.24 92 36 1915 2006 1999 1998 top-third 10 44.78 35.66 9.12 122 6 1915 2006 1999 1996 top-tenth 11 47.93 39.43 8.50 117 11 1915 2006 1999 1996 top-tenth 12 51.73 43.44 8.29 113 15 1915 2006 1999 1996 top-third 18 72.26 64.24 8.02 108 20 1965 2006 1999 1997 top-third 24 91.09 86.79 4.30 72 55 1911 2007 1999 1998 normal 36 142.74 130.18 12.56 103 23 1911 2008 1999 1998 top-third 48 193.00 173.55 19.45 109 16 1967 2009 1997 1999 top-third 60 248.01 216.87 31.14 115 9 1915 2010 1999 2000 top-tenth