Frequencies for first 10,000 rows of dbirwt variable in natl1979 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 227 | 1 0.01 0.01 340 | 1 0.01 0.02 425 | 2 0.02 0.04 454 | 2 0.02 0.06 482 | 3 0.03 0.09 510 | 1 0.01 0.10 539 | 2 0.02 0.12 567 | 3 0.03 0.15 624 | 3 0.03 0.18 680 | 1 0.01 0.19 709 | 1 0.01 0.20 737 | 1 0.01 0.21 765 | 5 0.05 0.26 794 | 1 0.01 0.27 822 | 1 0.01 0.28 851 | 6 0.06 0.34 879 | 2 0.02 0.36 907 | 4 0.04 0.40 936 | 3 0.03 0.43 964 | 5 0.05 0.48 992 | 4 0.04 0.52 1021 | 3 0.03 0.55 1049 | 2 0.02 0.57 1077 | 4 0.04 0.61 1106 | 2 0.02 0.63 1134 | 2 0.02 0.65 1162 | 3 0.03 0.68 1191 | 4 0.04 0.72 1219 | 4 0.04 0.76 1247 | 1 0.01 0.77 1276 | 3 0.03 0.80 1304 | 4 0.04 0.84 1332 | 5 0.05 0.89 1361 | 3 0.03 0.92 1389 | 2 0.02 0.94 1418 | 8 0.08 1.02 1446 | 4 0.04 1.06 1474 | 4 0.04 1.10 1503 | 6 0.06 1.16 1531 | 4 0.04 1.20 1559 | 3 0.03 1.23 1588 | 7 0.07 1.30 1616 | 3 0.03 1.33 1644 | 12 0.12 1.45 1673 | 6 0.06 1.51 1701 | 9 0.09 1.60 1729 | 4 0.04 1.64 1758 | 4 0.04 1.68 1786 | 12 0.12 1.80 1814 | 8 0.08 1.88 1843 | 6 0.06 1.94 1871 | 9 0.09 2.03 1899 | 9 0.09 2.12 1928 | 16 0.16 2.28 1956 | 10 0.10 2.38 1985 | 11 0.11 2.49 2013 | 16 0.16 2.65 2041 | 14 0.14 2.79 2070 | 11 0.11 2.90 2098 | 20 0.20 3.10 2126 | 14 0.14 3.24 2155 | 22 0.22 3.46 2183 | 14 0.14 3.60 2211 | 27 0.27 3.87 2240 | 16 0.16 4.03 2268 | 26 0.26 4.29 2296 | 19 0.19 4.48 2325 | 39 0.39 4.87 2353 | 30 0.30 5.17 2381 | 38 0.38 5.55 2410 | 35 0.35 5.90 2438 | 32 0.32 6.22 2466 | 54 0.54 6.76 2495 | 46 0.46 7.22 2523 | 49 0.49 7.71 2552 | 57 0.57 8.28 2580 | 60 0.60 8.88 2608 | 76 0.76 9.64 2637 | 74 0.74 10.38 2665 | 72 0.72 11.10 2693 | 79 0.79 11.89 2722 | 122 1.22 13.11 2750 | 104 1.04 14.15 2778 | 106 1.06 15.21 2807 | 128 1.28 16.49 2835 | 124 1.24 17.73 2863 | 122 1.22 18.95 2892 | 154 1.54 20.49 2920 | 141 1.41 21.90 2948 | 157 1.57 23.47 2977 | 145 1.45 24.92 3005 | 187 1.87 26.79 3033 | 166 1.66 28.45 3062 | 198 1.98 30.43 3090 | 200 2.00 32.43 3119 | 190 1.90 34.33 3147 | 158 1.58 35.91 3175 | 265 2.65 38.56 3204 | 212 2.12 40.68 3232 | 218 2.18 42.86 3260 | 227 2.27 45.13 3289 | 231 2.31 47.44 3317 | 193 1.93 49.37 3345 | 202 2.02 51.39 3374 | 209 2.09 53.48 3402 | 257 2.57 56.05 3430 | 208 2.08 58.13 3459 | 199 1.99 60.12 3487 | 218 2.18 62.30 3515 | 210 2.10 64.40 3544 | 188 1.88 66.28 3572 | 174 1.74 68.02 3600 | 156 1.56 69.58 3629 | 211 2.11 71.69 3657 | 171 1.71 73.40 3686 | 179 1.79 75.19 3714 | 201 2.01 77.20 3742 | 182 1.82 79.02 3771 | 135 1.35 80.37 3799 | 149 1.49 81.86 3827 | 106 1.06 82.92 3856 | 159 1.59 84.51 3884 | 137 1.37 85.88 3912 | 120 1.20 87.08 3941 | 97 0.97 88.05 3969 | 99 0.99 89.04 3997 | 108 1.08 90.12 4026 | 77 0.77 90.89 4054 | 60 0.60 91.49 4082 | 83 0.83 92.32 4111 | 60 0.60 92.92 4139 | 63 0.63 93.55 4167 | 57 0.57 94.12 4196 | 52 0.52 94.64 4224 | 46 0.46 95.10 4253 | 36 0.36 95.46 4281 | 43 0.43 95.89 4309 | 42 0.42 96.31 4338 | 30 0.30 96.61 4366 | 38 0.38 96.99 4394 | 32 0.32 97.31 4423 | 18 0.18 97.49 4451 | 23 0.23 97.72 4479 | 11 0.11 97.83 4508 | 24 0.24 98.07 4536 | 25 0.25 98.32 4564 | 19 0.19 98.51 4593 | 9 0.09 98.60 4621 | 13 0.13 98.73 4649 | 8 0.08 98.81 4678 | 14 0.14 98.95 4706 | 8 0.08 99.03 4734 | 7 0.07 99.10 4763 | 9 0.09 99.19 4791 | 8 0.08 99.27 4820 | 6 0.06 99.33 4848 | 2 0.02 99.35 4876 | 3 0.03 99.38 4905 | 5 0.05 99.43 4933 | 4 0.04 99.47 4961 | 4 0.04 99.51 4990 | 6 0.06 99.57 5018 | 6 0.06 99.63 5046 | 1 0.01 99.64 5075 | 2 0.02 99.66 5103 | 4 0.04 99.70 5131 | 1 0.01 99.71 5160 | 2 0.02 99.73 5188 | 6 0.06 99.79 5216 | 1 0.01 99.80 5245 | 1 0.01 99.81 5358 | 1 0.01 99.82 5500 | 1 0.01 99.83 5557 | 1 0.01 99.84 5642 | 1 0.01 99.85 5698 | 1 0.01 99.86 5868 | 1 0.01 99.87 6095 | 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