1901-2000 Inches 1 2.15 2.23 -0.08 58 71 1917 1983 1950 1951 normal 1928 2 2.69 4.40 -1.71 4 125 1917 1985 1939 1951 bottom-tenth 3 4.22 6.88 -2.66 2 127 1939 1985 1939 1951 bottom-tenth 4 6.84 9.50 -2.66 1 128 1952 2018 1952 1951 lowest 5 9.23 12.28 -3.05 1 128 1952 2018 1952 1951 lowest 6 11.43 15.20 -3.77 1 128 1952 2004 1952 1951 lowest 7 14.12 18.12 -4.00 1 128 1952 2004 1952 1951 lowest 8 16.52 20.63 -4.11 1 128 1952 2015 1952 1951 lowest 9 19.45 23.14 -3.69 5 124 1956 1973 1939 1951 bottom-tenth 10 21.45 25.28 -3.83 3 126 1910 2019 1910 1951 bottom-tenth 11 23.89 27.59 -3.70 5 124 1910 2019 1934 1951 bottom-tenth 12 27.01 29.94 -2.93 14 114 1931 2019 1939 1951 bottom-third 18 43.21 45.16 -1.95 29 99 1931 2019 1940 1951 bottom-third 24 57.07 59.90 -2.83 28 99 1931 2019 1940 1951 bottom-third 36 88.23 89.86 -1.63 41 85 1956 2019 1940 1951 bottom-third 48 118.90 119.78 -0.88 48 77 1956 2019 1940 1951 normal 60 148.99 149.66 -0.67 53 71 1956 2019 1943 1951 normal