1901-2000 Inches 1 1.15 1.22 -0.07 69 61 1910 1900 1966 1965 normal 2 2.02 2.58 -0.56 35 95 1955 1906 1966 1965 bottom-third 1896 3 2.27 3.80 -1.53 11 119 1977 1906 1966 1965 bottom-tenth 4 3.60 5.01 -1.41 19 111 1972 1980 1966 1965 bottom-third 2014 5 6.25 6.12 0.13 75 54 1977 1978 1966 1965 normal 6 7.00 7.19 -0.19 70 59 1977 1906 1966 1965 normal 7 7.86 8.39 -0.53 61 68 1977 2005 1966 1965 normal 8 8.78 9.46 -0.68 55 74 1977 2005 1964 1966 normal 9 9.74 10.66 -0.92 55 74 1977 2005 1963 1966 normal 10 10.57 11.65 -1.08 52 77 1977 1983 1963 1966 normal 11 10.85 12.38 -1.53 41 88 1977 1983 1963 1966 bottom-third 12 11.68 13.52 -1.84 32 97 1977 1983 1963 1966 bottom-third 18 18.29 20.71 -2.42 32 96 1977 1907 1964 1966 bottom-third 24 27.31 27.04 0.27 70 58 1977 1984 1965 1966 normal 36 40.88 40.52 0.36 66 61 1961 1985 1965 1966 normal 48 53.01 53.95 -0.94 56 70 1977 1986 1966 1950 normal 60 63.31 67.39 -4.08 37 88 1957 1986 1965 1966 bottom-third