Frequencies for first 10,000 rows of dbirwt variable in natlterr1998 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 397 | 1 0.01 0.01 454 | 5 0.05 0.06 482 | 1 0.01 0.07 510 | 1 0.01 0.08 595 | 1 0.01 0.09 624 | 3 0.03 0.12 652 | 2 0.02 0.14 680 | 11 0.11 0.25 709 | 1 0.01 0.26 737 | 5 0.05 0.31 765 | 2 0.02 0.33 794 | 5 0.05 0.38 822 | 4 0.04 0.42 851 | 6 0.06 0.48 879 | 4 0.04 0.52 907 | 9 0.09 0.61 936 | 4 0.04 0.65 964 | 5 0.05 0.70 992 | 1 0.01 0.71 1021 | 2 0.02 0.73 1049 | 6 0.06 0.79 1077 | 3 0.03 0.82 1106 | 9 0.09 0.91 1134 | 2 0.02 0.93 1162 | 5 0.05 0.98 1191 | 2 0.02 1.00 1219 | 1 0.01 1.01 1247 | 4 0.04 1.05 1276 | 4 0.04 1.09 1304 | 4 0.04 1.13 1332 | 3 0.03 1.16 1361 | 6 0.06 1.22 1389 | 4 0.04 1.26 1418 | 5 0.05 1.31 1446 | 7 0.07 1.38 1474 | 7 0.07 1.45 1503 | 1 0.01 1.46 1531 | 11 0.11 1.57 1559 | 12 0.12 1.69 1588 | 8 0.08 1.77 1616 | 4 0.04 1.81 1644 | 11 0.11 1.92 1673 | 2 0.02 1.94 1701 | 7 0.07 2.01 1729 | 3 0.03 2.04 1758 | 7 0.07 2.11 1786 | 3 0.03 2.14 1814 | 26 0.26 2.40 1843 | 17 0.17 2.57 1871 | 16 0.16 2.73 1899 | 10 0.10 2.83 1928 | 10 0.10 2.93 1956 | 11 0.11 3.04 1985 | 19 0.19 3.23 2013 | 22 0.22 3.45 2041 | 22 0.22 3.67 2070 | 22 0.22 3.89 2098 | 16 0.16 4.05 2126 | 13 0.13 4.18 2155 | 17 0.17 4.35 2183 | 24 0.24 4.59 2211 | 26 0.26 4.85 2240 | 22 0.22 5.07 2268 | 93 0.93 6.00 2296 | 41 0.41 6.41 2325 | 44 0.44 6.85 2353 | 43 0.43 7.28 2381 | 60 0.60 7.88 2410 | 60 0.60 8.48 2438 | 56 0.56 9.04 2466 | 64 0.64 9.68 2495 | 82 0.82 10.50 2523 | 84 0.84 11.34 2552 | 80 0.80 12.14 2580 | 76 0.76 12.90 2608 | 112 1.12 14.02 2637 | 117 1.17 15.19 2665 | 107 1.07 16.26 2693 | 83 0.83 17.09 2722 | 245 2.45 19.54 2750 | 142 1.42 20.96 2778 | 174 1.74 22.70 2807 | 179 1.79 24.49 2835 | 215 2.15 26.64 2863 | 191 1.91 28.55 2892 | 186 1.86 30.41 2920 | 211 2.11 32.52 2948 | 236 2.36 34.88 2977 | 246 2.46 37.34 3005 | 226 2.26 39.60 3033 | 195 1.95 41.55 3062 | 256 2.56 44.11 3090 | 207 2.07 46.18 3119 | 221 2.21 48.39 3147 | 169 1.69 50.08 3175 | 392 3.92 54.00 3204 | 198 1.98 55.98 3232 | 245 2.45 58.43 3260 | 211 2.11 60.54 3289 | 233 2.33 62.87 3317 | 245 2.45 65.32 3345 | 212 2.12 67.44 3374 | 197 1.97 69.41 3402 | 257 2.57 71.98 3430 | 193 1.93 73.91 3459 | 198 1.98 75.89 3487 | 165 1.65 77.54 3515 | 166 1.66 79.20 3544 | 155 1.55 80.75 3572 | 160 1.60 82.35 3600 | 119 1.19 83.54 3629 | 214 2.14 85.68 3657 | 103 1.03 86.71 3686 | 108 1.08 87.79 3714 | 97 0.97 88.76 3742 | 124 1.24 90.00 3771 | 106 1.06 91.06 3799 | 86 0.86 91.92 3827 | 73 0.73 92.65 3856 | 86 0.86 93.51 3884 | 58 0.58 94.09 3912 | 73 0.73 94.82 3941 | 48 0.48 95.30 3969 | 54 0.54 95.84 3997 | 43 0.43 96.27 4026 | 34 0.34 96.61 4054 | 30 0.30 96.91 4082 | 50 0.50 97.41 4111 | 15 0.15 97.56 4139 | 26 0.26 97.82 4167 | 25 0.25 98.07 4196 | 21 0.21 98.28 4224 | 19 0.19 98.47 4253 | 11 0.11 98.58 4281 | 20 0.20 98.78 4309 | 16 0.16 98.94 4338 | 11 0.11 99.05 4366 | 13 0.13 99.18 4394 | 12 0.12 99.30 4423 | 10 0.10 99.40 4451 | 7 0.07 99.47 4479 | 3 0.03 99.50 4508 | 5 0.05 99.55 4536 | 14 0.14 99.69 4564 | 4 0.04 99.73 4593 | 3 0.03 99.76 4621 | 3 0.03 99.79 4678 | 3 0.03 99.82 4706 | 2 0.02 99.84 4734 | 1 0.01 99.85 4763 | 1 0.01 99.86 4820 | 2 0.02 99.88 4848 | 1 0.01 99.89 4933 | 3 0.03 99.92 4961 | 2 0.02 99.94 4990 | 2 0.02 99.96 5018 | 1 0.01 99.97 5075 | 1 0.01 99.98 5245 | 1 0.01 99.99 9999 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015