1901-2000 Inches 1 0.78 1.01 -0.23 37 92 1986 1964,1996 1954 1956 bottom-third 1931,1953,1999 2 1.93 2.05 -0.12 59 70 1914 1983 1954 1956 normal 1950 3 3.38 3.24 0.14 78 51 1976 1942 1956 1955 normal 1920 4 4.27 4.48 -0.21 57 72 1952 2013 1956 1955 normal 1921 5 5.66 5.55 0.11 75 54 1904 1923 1956 1955 normal 6 6.80 6.83 -0.03 63 66 1939 1923 1956 1955 normal 1936,2005 7 9.30 8.67 0.63 91 38 1935 1923 1956 1955 top-third 8 13.46 10.88 2.58 115 14 1900 1923 1956 1947 top-third 9 16.12 12.66 3.46 123 6 1954 1941 1956 1941 top-tenth 10 17.31 13.91 3.40 120 9 2012 1941 1956 1945 top-tenth 11 18.02 14.88 3.14 119 10 2012 1941 1956 1945 top-tenth 12 18.91 15.94 2.97 118 11 2012 1927 1956 1945 top-tenth 18 24.22 22.77 1.45 89 39 1934 1927 1956 1947 top-third 24 31.46 31.87 -0.41 57 71 2002 1983 1956 1951 normal 36 47.62 47.82 -0.20 67 60 2002 1947 1956 1951 normal 48 59.70 63.72 -4.02 31 95 2003 1998 1956 1953 bottom-third 60 73.65 79.58 -5.93 20 105 1935 1999 1956 1953 bottom-third