1901-2000 Inches 1 1.14 1.20 -0.06 61 68 1933 1994 1989 1986 normal 1960 2 2.19 2.44 -0.25 52 77 1952 2013 1988 1989 normal 3 3.31 3.51 -0.20 58 71 1958 1923 1988 1989 normal 4 5.21 4.79 0.42 90 39 1964 1923 1989 1986 top-third 5 6.40 6.62 -0.22 68 61 1988 1923 1988 1989 normal 1948,1971 6 8.17 8.84 -0.67 53 76 2012 1923 1988 1989 normal 7 10.22 10.61 -0.39 61 68 2012 1941 1989 1986 normal 8 11.66 11.86 -0.20 63 66 2012 1941 1989 1986 normal 9 12.35 12.83 -0.48 55 74 2012 1941 1988 1989 normal 10 13.33 13.89 -0.56 53 76 2012 1923 1989 1989 normal 1989 11 14.22 14.90 -0.68 51 77 2012 1923 1989 1986 normal 12 15.02 15.94 -0.92 47 81 1960 1923 1988 1989 normal 18 23.63 24.75 -1.12 51 77 1934 1927 1989 1987 normal 24 30.52 31.86 -1.34 44 83 2002 1998 1989 1987 normal 36 42.03 47.81 -5.78 17 109 2002 1947 1989 1988 bottom-third 48 56.26 63.72 -7.46 11 114 2003 1998 1961 1989 bottom-tenth 60 75.41 79.57 -4.16 35 89 1935 1999 1989 1988 bottom-third