Frequencies for first 10,000 rows of dbirwt variable in natl1976 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 312 | 1 0.01 0.01 425 | 1 0.01 0.02 454 | 1 0.01 0.03 482 | 2 0.02 0.05 510 | 1 0.01 0.06 567 | 2 0.02 0.08 652 | 1 0.01 0.09 737 | 1 0.01 0.10 765 | 2 0.02 0.12 794 | 4 0.04 0.16 822 | 1 0.01 0.17 879 | 2 0.02 0.19 907 | 2 0.02 0.21 936 | 1 0.01 0.22 964 | 3 0.03 0.25 992 | 1 0.01 0.26 1021 | 2 0.02 0.28 1049 | 1 0.01 0.29 1077 | 3 0.03 0.32 1106 | 1 0.01 0.33 1134 | 3 0.03 0.36 1191 | 4 0.04 0.40 1219 | 4 0.04 0.44 1247 | 9 0.09 0.53 1276 | 4 0.04 0.57 1304 | 5 0.05 0.62 1332 | 2 0.02 0.64 1361 | 3 0.03 0.67 1389 | 6 0.06 0.73 1418 | 2 0.02 0.75 1446 | 6 0.06 0.81 1474 | 6 0.06 0.87 1503 | 4 0.04 0.91 1531 | 3 0.03 0.94 1559 | 2 0.02 0.96 1588 | 5 0.05 1.01 1616 | 4 0.04 1.05 1644 | 5 0.05 1.10 1673 | 1 0.01 1.11 1701 | 8 0.08 1.19 1729 | 4 0.04 1.23 1758 | 10 0.10 1.33 1786 | 11 0.11 1.44 1814 | 10 0.10 1.54 1843 | 5 0.05 1.59 1871 | 10 0.10 1.69 1899 | 10 0.10 1.79 1928 | 6 0.06 1.85 1956 | 17 0.17 2.02 1985 | 14 0.14 2.16 2013 | 10 0.10 2.26 2041 | 11 0.11 2.37 2070 | 23 0.23 2.60 2098 | 16 0.16 2.76 2126 | 20 0.20 2.96 2155 | 20 0.20 3.16 2183 | 20 0.20 3.36 2211 | 20 0.20 3.56 2240 | 15 0.15 3.71 2268 | 36 0.36 4.07 2296 | 26 0.26 4.33 2325 | 33 0.33 4.66 2353 | 33 0.33 4.99 2381 | 54 0.54 5.53 2410 | 40 0.40 5.93 2438 | 54 0.54 6.47 2466 | 45 0.45 6.92 2495 | 70 0.70 7.62 2523 | 52 0.52 8.14 2552 | 36 0.36 8.50 2580 | 51 0.51 9.01 2608 | 64 0.64 9.65 2637 | 71 0.71 10.36 2665 | 70 0.70 11.06 2693 | 63 0.63 11.69 2722 | 141 1.41 13.10 2750 | 100 1.00 14.10 2778 | 110 1.10 15.20 2807 | 113 1.13 16.33 2835 | 138 1.38 17.71 2863 | 140 1.40 19.11 2892 | 155 1.55 20.66 2920 | 153 1.53 22.19 2948 | 167 1.67 23.86 2977 | 163 1.63 25.49 3005 | 192 1.92 27.41 3033 | 171 1.71 29.12 3062 | 199 1.99 31.11 3090 | 193 1.93 33.04 3119 | 175 1.75 34.79 3147 | 181 1.81 36.60 3175 | 250 2.50 39.10 3204 | 178 1.78 40.88 3232 | 238 2.38 43.26 3260 | 219 2.19 45.45 3289 | 229 2.29 47.74 3317 | 223 2.23 49.97 3345 | 203 2.03 52.00 3374 | 222 2.22 54.22 3402 | 277 2.77 56.99 3430 | 212 2.12 59.11 3459 | 209 2.09 61.20 3487 | 200 2.00 63.20 3515 | 206 2.06 65.26 3544 | 195 1.95 67.21 3572 | 187 1.87 69.08 3600 | 163 1.63 70.71 3629 | 232 2.32 73.03 3657 | 148 1.48 74.51 3686 | 154 1.54 76.05 3714 | 148 1.48 77.53 3742 | 194 1.94 79.47 3771 | 146 1.46 80.93 3799 | 141 1.41 82.34 3827 | 121 1.21 83.55 3856 | 173 1.73 85.28 3884 | 106 1.06 86.34 3912 | 114 1.14 87.48 3941 | 87 0.87 88.35 3969 | 87 0.87 89.22 3997 | 69 0.69 89.91 4026 | 81 0.81 90.72 4054 | 76 0.76 91.48 4082 | 108 1.08 92.56 4111 | 55 0.55 93.11 4139 | 64 0.64 93.75 4167 | 57 0.57 94.32 4196 | 58 0.58 94.90 4224 | 46 0.46 95.36 4253 | 35 0.35 95.71 4281 | 24 0.24 95.95 4309 | 45 0.45 96.40 4338 | 38 0.38 96.78 4366 | 29 0.29 97.07 4394 | 20 0.20 97.27 4423 | 29 0.29 97.56 4451 | 22 0.22 97.78 4479 | 21 0.21 97.99 4508 | 15 0.15 98.14 4536 | 32 0.32 98.46 4564 | 10 0.10 98.56 4593 | 16 0.16 98.72 4621 | 10 0.10 98.82 4649 | 14 0.14 98.96 4678 | 6 0.06 99.02 4706 | 6 0.06 99.08 4734 | 9 0.09 99.17 4763 | 9 0.09 99.26 4791 | 7 0.07 99.33 4820 | 6 0.06 99.39 4848 | 6 0.06 99.45 4876 | 8 0.08 99.53 4905 | 3 0.03 99.56 4933 | 5 0.05 99.61 4961 | 2 0.02 99.63 4990 | 3 0.03 99.66 5018 | 4 0.04 99.70 5046 | 5 0.05 99.75 5075 | 2 0.02 99.77 5103 | 2 0.02 99.79 5160 | 1 0.01 99.80 5273 | 1 0.01 99.81 5358 | 3 0.03 99.84 5443 | 1 0.01 99.85 5472 | 1 0.01 99.86 5528 | 1 0.01 99.87 5925 | 1 0.01 99.88 9999 | 12 0.12 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016