1901-2000 Inches 1 3.83 4.74 -0.91 54 75 1951 1907 1899 1900 normal 1931 2 15.22 10.02 5.20 120 9 1899 1991 1899 1900 top-tenth 3 19.99 15.99 4.00 109 20 2007 1991 1899 1900 top-third 4 26.79 21.00 5.79 114 15 2007 1991 1899 1900 top-third 5 29.97 26.28 3.69 100 29 2007 1991 1899 1900 top-third 6 36.22 31.85 4.37 101 27 1963 1983 1899 1900 top-third 7 38.83 36.07 2.76 88 40 1904 1983 1899 1900 top-third 8 39.97 39.03 0.94 70 58 1904 1983 1899 1900 normal 9 40.83 42.46 -1.63 54 74 1904 1983 1899 1900 normal 10 44.43 46.39 -1.96 51 77 1904 1983 1898 1899 normal 11 49.09 51.40 -2.31 44 84 1925 1983 1898 1899 normal 12 52.72 55.57 -2.85 45 83 1904 1983 1898 1899 normal 18 76.89 87.56 -10.67 24 103 1925 1980 1898 1899 bottom-third 24 107.98 111.26 -3.28 54 73 1926 1991 1899 1900 normal 36 151.65 166.96 -15.31 22 104 1956 1975 1899 1900 bottom-third 48 197.63 222.49 -24.86 5 120 1957 1976 1899 1900 bottom-tenth 60 249.66 277.83 -28.17 6 118 1957 2022 1900 1900 bottom-tenth