1901-2000 Inches 1 3.69 3.09 0.60 91 38 1925 2004 1996 1991 top-third 2 4.83 5.68 -0.85 29 100 1925 2011 1992 1996 bottom-third 3 6.99 7.73 -0.74 33 96 1958 2011 1994 1996 bottom-third 4 9.66 9.23 0.43 71 58 1958 2011 1996 1991 normal 5 12.70 11.04 1.66 97 32 1958 2013 1996 1991 top-third 6 15.70 13.03 2.67 108 20 1958 2013 1996 1985 top-third 2006 7 17.65 15.60 2.05 98 30 1987 2004 1996 1993 top-third 2002 8 20.93 18.31 2.62 98 30 1925 2020 1996 1991 top-third 9 24.71 21.69 3.02 100 28 1925 2020 1996 1993 top-third 1993 10 26.94 24.82 2.12 84 44 1931 2020 1996 1993 normal 11 30.46 27.88 2.58 90 38 1931 2017 1996 1993 top-third 12 35.43 31.14 4.29 106 22 1931 2020 1996 1991 top-third 18 48.41 44.16 4.25 99 28 1931 2020 1996 1991 top-third 24 67.92 62.26 5.66 103 24 1931 2020 1996 1992 top-third 36 101.29 93.40 7.89 103 23 1936 2020 1996 1993 top-third 48 132.41 124.54 7.87 96 29 1937 2020 1996 1994 top-third 60 167.32 155.69 11.63 104 20 1934 2020 1996 1995 top-third