Frequencies for first 10,000 rows of dbirwt variable in natl1973 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 227 | 1 0.01 0.01 284 | 1 0.01 0.02 312 | 2 0.02 0.04 397 | 2 0.02 0.06 425 | 2 0.02 0.08 482 | 1 0.01 0.09 510 | 1 0.01 0.10 539 | 1 0.01 0.11 595 | 2 0.02 0.13 624 | 5 0.05 0.18 652 | 1 0.01 0.19 680 | 4 0.04 0.23 709 | 1 0.01 0.24 737 | 4 0.04 0.28 765 | 1 0.01 0.29 794 | 2 0.02 0.31 822 | 3 0.03 0.34 851 | 4 0.04 0.38 879 | 3 0.03 0.41 907 | 8 0.08 0.49 936 | 3 0.03 0.52 964 | 3 0.03 0.55 992 | 4 0.04 0.59 1021 | 3 0.03 0.62 1077 | 6 0.06 0.68 1106 | 4 0.04 0.72 1134 | 2 0.02 0.74 1162 | 2 0.02 0.76 1191 | 3 0.03 0.79 1219 | 2 0.02 0.81 1247 | 1 0.01 0.82 1276 | 3 0.03 0.85 1304 | 1 0.01 0.86 1332 | 4 0.04 0.90 1361 | 12 0.12 1.02 1389 | 2 0.02 1.04 1418 | 7 0.07 1.11 1446 | 3 0.03 1.14 1474 | 5 0.05 1.19 1503 | 4 0.04 1.23 1531 | 9 0.09 1.32 1559 | 5 0.05 1.37 1588 | 5 0.05 1.42 1616 | 2 0.02 1.44 1644 | 4 0.04 1.48 1673 | 10 0.10 1.58 1701 | 6 0.06 1.64 1729 | 9 0.09 1.73 1758 | 6 0.06 1.79 1786 | 4 0.04 1.83 1814 | 13 0.13 1.96 1843 | 6 0.06 2.02 1871 | 19 0.19 2.21 1899 | 6 0.06 2.27 1928 | 16 0.16 2.43 1956 | 11 0.11 2.54 1985 | 23 0.23 2.77 2013 | 13 0.13 2.90 2041 | 19 0.19 3.09 2070 | 9 0.09 3.18 2098 | 16 0.16 3.34 2126 | 19 0.19 3.53 2155 | 16 0.16 3.69 2183 | 11 0.11 3.80 2211 | 15 0.15 3.95 2240 | 15 0.15 4.10 2268 | 43 0.43 4.53 2296 | 28 0.28 4.81 2325 | 32 0.32 5.13 2353 | 49 0.49 5.62 2381 | 42 0.42 6.04 2410 | 34 0.34 6.38 2438 | 44 0.44 6.82 2466 | 48 0.48 7.30 2495 | 50 0.50 7.80 2523 | 39 0.39 8.19 2552 | 41 0.41 8.60 2580 | 77 0.77 9.37 2608 | 71 0.71 10.08 2637 | 75 0.75 10.83 2665 | 78 0.78 11.61 2693 | 78 0.78 12.39 2722 | 149 1.49 13.88 2750 | 90 0.90 14.78 2778 | 134 1.34 16.12 2807 | 126 1.26 17.38 2835 | 134 1.34 18.72 2863 | 151 1.51 20.23 2892 | 174 1.74 21.97 2920 | 137 1.37 23.34 2948 | 211 2.11 25.45 2977 | 153 1.53 26.98 3005 | 170 1.70 28.68 3033 | 172 1.72 30.40 3062 | 180 1.80 32.20 3090 | 181 1.81 34.01 3119 | 190 1.90 35.91 3147 | 177 1.77 37.68 3175 | 290 2.90 40.58 3204 | 204 2.04 42.62 3232 | 219 2.19 44.81 3260 | 223 2.23 47.04 3289 | 232 2.32 49.36 3317 | 207 2.07 51.43 3345 | 232 2.32 53.75 3374 | 215 2.15 55.90 3402 | 270 2.70 58.60 3430 | 205 2.05 60.65 3459 | 209 2.09 62.74 3487 | 177 1.77 64.51 3515 | 198 1.98 66.49 3544 | 180 1.80 68.29 3572 | 191 1.91 70.20 3600 | 140 1.40 71.60 3629 | 260 2.60 74.20 3657 | 159 1.59 75.79 3686 | 132 1.32 77.11 3714 | 165 1.65 78.76 3742 | 172 1.72 80.48 3771 | 130 1.30 81.78 3799 | 131 1.31 83.09 3827 | 139 1.39 84.48 3856 | 151 1.51 85.99 3884 | 94 0.94 86.93 3912 | 114 1.14 88.07 3941 | 94 0.94 89.01 3969 | 110 1.10 90.11 3997 | 69 0.69 90.80 4026 | 67 0.67 91.47 4054 | 55 0.55 92.02 4082 | 102 1.02 93.04 4111 | 48 0.48 93.52 4139 | 41 0.41 93.93 4167 | 44 0.44 94.37 4196 | 62 0.62 94.99 4224 | 45 0.45 95.44 4253 | 41 0.41 95.85 4281 | 29 0.29 96.14 4309 | 46 0.46 96.60 4338 | 31 0.31 96.91 4366 | 22 0.22 97.13 4394 | 27 0.27 97.40 4423 | 18 0.18 97.58 4451 | 22 0.22 97.80 4479 | 18 0.18 97.98 4508 | 20 0.20 98.18 4536 | 24 0.24 98.42 4564 | 10 0.10 98.52 4593 | 11 0.11 98.63 4621 | 12 0.12 98.75 4649 | 4 0.04 98.79 4678 | 15 0.15 98.94 4706 | 8 0.08 99.02 4734 | 4 0.04 99.06 4763 | 4 0.04 99.10 4791 | 10 0.10 99.20 4820 | 2 0.02 99.22 4848 | 6 0.06 99.28 4876 | 2 0.02 99.30 4905 | 5 0.05 99.35 4933 | 4 0.04 99.39 4961 | 1 0.01 99.40 4990 | 6 0.06 99.46 5018 | 5 0.05 99.51 5046 | 2 0.02 99.53 5131 | 1 0.01 99.54 5160 | 1 0.01 99.55 5216 | 2 0.02 99.57 5245 | 2 0.02 99.59 5273 | 2 0.02 99.61 5330 | 1 0.01 99.62 5358 | 1 0.01 99.63 5472 | 1 0.01 99.64 5585 | 1 0.01 99.65 5783 | 1 0.01 99.66 9999 | 34 0.34 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016