Frequencies for first 10,000 rows of dbirwt variable in natlterr1995 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 340 | 1 0.01 0.01 397 | 1 0.01 0.02 454 | 4 0.04 0.06 482 | 1 0.01 0.07 510 | 2 0.02 0.09 539 | 4 0.04 0.13 567 | 1 0.01 0.14 652 | 3 0.03 0.17 680 | 2 0.02 0.19 709 | 2 0.02 0.21 737 | 2 0.02 0.23 765 | 3 0.03 0.26 794 | 1 0.01 0.27 851 | 3 0.03 0.30 907 | 7 0.07 0.37 936 | 2 0.02 0.39 964 | 6 0.06 0.45 992 | 5 0.05 0.50 1021 | 4 0.04 0.54 1049 | 3 0.03 0.57 1077 | 4 0.04 0.61 1106 | 2 0.02 0.63 1134 | 5 0.05 0.68 1162 | 6 0.06 0.74 1191 | 2 0.02 0.76 1219 | 3 0.03 0.79 1247 | 2 0.02 0.81 1276 | 5 0.05 0.86 1304 | 4 0.04 0.90 1332 | 4 0.04 0.94 1361 | 20 0.20 1.14 1389 | 7 0.07 1.21 1418 | 5 0.05 1.26 1446 | 6 0.06 1.32 1474 | 6 0.06 1.38 1503 | 11 0.11 1.49 1531 | 9 0.09 1.58 1559 | 12 0.12 1.70 1588 | 13 0.13 1.83 1616 | 3 0.03 1.86 1644 | 7 0.07 1.93 1673 | 3 0.03 1.96 1701 | 9 0.09 2.05 1729 | 7 0.07 2.12 1758 | 8 0.08 2.20 1786 | 4 0.04 2.24 1814 | 29 0.29 2.53 1843 | 13 0.13 2.66 1871 | 13 0.13 2.79 1899 | 15 0.15 2.94 1928 | 16 0.16 3.10 1956 | 18 0.18 3.28 1985 | 15 0.15 3.43 2013 | 15 0.15 3.58 2041 | 18 0.18 3.76 2070 | 20 0.20 3.96 2098 | 25 0.25 4.21 2126 | 25 0.25 4.46 2155 | 22 0.22 4.68 2183 | 20 0.20 4.88 2211 | 22 0.22 5.10 2240 | 20 0.20 5.30 2268 | 116 1.16 6.46 2296 | 33 0.33 6.79 2325 | 50 0.50 7.29 2353 | 48 0.48 7.77 2381 | 43 0.43 8.20 2410 | 51 0.51 8.71 2438 | 50 0.50 9.21 2466 | 68 0.68 9.89 2495 | 70 0.70 10.59 2523 | 56 0.56 11.15 2552 | 70 0.70 11.85 2580 | 77 0.77 12.62 2608 | 98 0.98 13.60 2637 | 85 0.85 14.45 2665 | 80 0.80 15.25 2693 | 83 0.83 16.08 2722 | 359 3.59 19.67 2750 | 112 1.12 20.79 2778 | 158 1.58 22.37 2807 | 181 1.81 24.18 2835 | 165 1.65 25.83 2863 | 152 1.52 27.35 2892 | 182 1.82 29.17 2920 | 193 1.93 31.10 2948 | 216 2.16 33.26 2977 | 191 1.91 35.17 3005 | 246 2.46 37.63 3033 | 154 1.54 39.17 3062 | 242 2.42 41.59 3090 | 206 2.06 43.65 3119 | 180 1.80 45.45 3147 | 160 1.60 47.05 3175 | 522 5.22 52.27 3204 | 214 2.14 54.41 3232 | 243 2.43 56.84 3260 | 222 2.22 59.06 3289 | 246 2.46 61.52 3317 | 191 1.91 63.43 3345 | 189 1.89 65.32 3374 | 212 2.12 67.44 3402 | 232 2.32 69.76 3430 | 194 1.94 71.70 3459 | 206 2.06 73.76 3487 | 176 1.76 75.52 3515 | 198 1.98 77.50 3544 | 181 1.81 79.31 3572 | 155 1.55 80.86 3600 | 117 1.17 82.03 3629 | 281 2.81 84.84 3657 | 107 1.07 85.91 3686 | 126 1.26 87.17 3714 | 125 1.25 88.42 3742 | 98 0.98 89.40 3771 | 85 0.85 90.25 3799 | 84 0.84 91.09 3827 | 84 0.84 91.93 3856 | 95 0.95 92.88 3884 | 66 0.66 93.54 3912 | 73 0.73 94.27 3941 | 60 0.60 94.87 3969 | 59 0.59 95.46 3997 | 42 0.42 95.88 4026 | 50 0.50 96.38 4054 | 27 0.27 96.65 4082 | 70 0.70 97.35 4111 | 30 0.30 97.65 4139 | 18 0.18 97.83 4167 | 24 0.24 98.07 4196 | 13 0.13 98.20 4224 | 24 0.24 98.44 4253 | 18 0.18 98.62 4281 | 17 0.17 98.79 4309 | 17 0.17 98.96 4338 | 10 0.10 99.06 4366 | 16 0.16 99.22 4394 | 6 0.06 99.28 4423 | 5 0.05 99.33 4451 | 1 0.01 99.34 4479 | 9 0.09 99.43 4508 | 3 0.03 99.46 4536 | 14 0.14 99.60 4564 | 6 0.06 99.66 4593 | 2 0.02 99.68 4649 | 3 0.03 99.71 4706 | 4 0.04 99.75 4734 | 4 0.04 99.79 4763 | 2 0.02 99.81 4820 | 1 0.01 99.82 4848 | 2 0.02 99.84 4876 | 1 0.01 99.85 4905 | 3 0.03 99.88 4961 | 3 0.03 99.91 4990 | 2 0.02 99.93 5018 | 1 0.01 99.94 5131 | 1 0.01 99.95 5245 | 1 0.01 99.96 5301 | 3 0.03 99.99 5443 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015