1901-2000 Inches 1 5.30 3.44 1.86 121 8 1930 1900 1987 1980 top-tenth 2 7.61 7.04 0.57 78 51 1930 2016 1984 1987 normal 3 9.43 11.15 -1.72 23 106 1936 1993 1976 1987 bottom-third 4 11.53 14.28 -2.75 14 115 1910 1993 1976 1987 bottom-third 5 12.47 16.32 -3.85 12 117 1910 1993 1976 1987 bottom-tenth 6 13.92 17.59 -3.67 13 116 1910 1993 1976 1987 bottom-tenth 7 14.10 18.28 -4.18 9 120 1910 1993 1976 1987 bottom-tenth 8 15.07 19.07 -4.00 13 116 1910 1993 1976 1987 bottom-tenth 9 15.92 19.88 -3.96 13 115 1910 1993 1976 1987 bottom-tenth 10 17.11 21.16 -4.05 14 114 1934 1993 1976 1987 bottom-third 11 17.92 23.09 -5.17 7 121 1934 1999 1936 1987 bottom-tenth 12 20.31 26.01 -5.70 8 120 1936 2011 1976 1987 bottom-tenth 18 36.28 43.57 -7.29 7 121 1934 2011 1934 1987 bottom-tenth 24 45.49 52.00 -6.51 14 113 1934 2020 1977 1987 bottom-third 36 77.42 77.95 -0.53 46 80 1931 2020 1982 1987 normal 48 108.80 103.86 4.94 80 45 1936 2019 1983 1987 normal 60 136.86 129.79 7.07 81 43 1934 2020 1984 1987 normal