1901-2000 Inches 1 4.14 3.32 0.82 93 36 1949 1982 1999 2001 top-third 2 9.78 6.76 3.02 113 16 1964 2006 2000 2001 top-third 3 13.40 10.83 2.57 105 24 1999 1998 2001 2000 top-third 4 17.99 15.04 2.95 103 26 1915 1998 1999 2001 top-third 1973 5 19.90 18.48 1.42 82 47 1915 1998 1999 2001 normal 1912 6 22.84 22.42 0.42 68 61 1957 1998 1999 2001 normal 7 25.55 26.57 -1.02 55 73 1957 1998 1999 2001 normal 8 26.44 30.73 -4.29 24 104 1966 1998 1999 2001 bottom-third 9 27.96 34.26 -6.30 14 114 1966 2006 1985 2001 bottom-third 10 30.98 37.86 -6.88 15 113 1966 2019 1985 2001 bottom-third 11 35.20 41.90 -6.70 16 112 1966 2019 1985 2001 bottom-third 12 38.45 45.13 -6.68 18 110 1966 2019 1985 2001 bottom-third 18 66.08 67.54 -1.46 53 75 1966 1984 1996 2001 normal 24 88.00 90.22 -2.22 45 82 1966 2010 1996 2001 normal 36 138.57 135.51 3.06 63 63 1966 2007 1996 2001 normal 48 177.53 180.72 -3.19 42 83 1966 2007 1988 2001 normal 60 237.88 225.85 12.03 80 44 1967 2010 1997 2001 normal