Frequencies for first 10,000 rows of dbirwt variable in natlterr1996 dataset : Birthweight | Freq. Percent Cum. ------------+----------------------------------- 454 | 5 0.05 0.05 482 | 2 0.02 0.07 539 | 1 0.01 0.08 567 | 1 0.01 0.09 595 | 3 0.03 0.12 624 | 2 0.02 0.14 652 | 1 0.01 0.15 680 | 1 0.01 0.16 709 | 3 0.03 0.19 765 | 3 0.03 0.22 794 | 3 0.03 0.25 822 | 1 0.01 0.26 851 | 1 0.01 0.27 879 | 4 0.04 0.31 907 | 11 0.11 0.42 936 | 5 0.05 0.47 992 | 3 0.03 0.50 1021 | 2 0.02 0.52 1049 | 2 0.02 0.54 1077 | 3 0.03 0.57 1106 | 1 0.01 0.58 1134 | 7 0.07 0.65 1162 | 4 0.04 0.69 1191 | 1 0.01 0.70 1219 | 3 0.03 0.73 1247 | 5 0.05 0.78 1276 | 3 0.03 0.81 1304 | 4 0.04 0.85 1332 | 1 0.01 0.86 1361 | 9 0.09 0.95 1389 | 3 0.03 0.98 1418 | 5 0.05 1.03 1446 | 5 0.05 1.08 1474 | 4 0.04 1.12 1503 | 2 0.02 1.14 1531 | 7 0.07 1.21 1559 | 6 0.06 1.27 1588 | 2 0.02 1.29 1616 | 6 0.06 1.35 1644 | 5 0.05 1.40 1673 | 10 0.10 1.50 1701 | 7 0.07 1.57 1729 | 4 0.04 1.61 1758 | 6 0.06 1.67 1786 | 7 0.07 1.74 1814 | 40 0.40 2.14 1843 | 16 0.16 2.30 1871 | 4 0.04 2.34 1899 | 12 0.12 2.46 1928 | 10 0.10 2.56 1956 | 14 0.14 2.70 1985 | 14 0.14 2.84 2013 | 10 0.10 2.94 2041 | 15 0.15 3.09 2070 | 15 0.15 3.24 2098 | 24 0.24 3.48 2126 | 12 0.12 3.60 2155 | 28 0.28 3.88 2183 | 18 0.18 4.06 2211 | 25 0.25 4.31 2240 | 25 0.25 4.56 2268 | 136 1.36 5.92 2296 | 38 0.38 6.30 2325 | 39 0.39 6.69 2353 | 43 0.43 7.12 2381 | 49 0.49 7.61 2410 | 59 0.59 8.20 2438 | 65 0.65 8.85 2466 | 60 0.60 9.45 2495 | 63 0.63 10.08 2523 | 59 0.59 10.67 2552 | 81 0.81 11.48 2580 | 81 0.81 12.29 2608 | 86 0.86 13.15 2637 | 96 0.96 14.11 2665 | 86 0.86 14.97 2693 | 87 0.87 15.84 2722 | 435 4.35 20.19 2750 | 115 1.15 21.34 2778 | 155 1.55 22.89 2807 | 147 1.47 24.36 2835 | 170 1.70 26.06 2863 | 170 1.70 27.76 2892 | 188 1.88 29.64 2920 | 179 1.79 31.43 2948 | 203 2.03 33.46 2977 | 184 1.84 35.30 3005 | 167 1.67 36.97 3033 | 193 1.93 38.90 3062 | 239 2.39 41.29 3090 | 193 1.93 43.22 3119 | 236 2.36 45.58 3147 | 165 1.65 47.23 3175 | 738 7.38 54.61 3204 | 171 1.71 56.32 3232 | 205 2.05 58.37 3260 | 213 2.13 60.50 3289 | 221 2.21 62.71 3317 | 185 1.85 64.56 3345 | 195 1.95 66.51 3374 | 185 1.85 68.36 3402 | 242 2.42 70.78 3430 | 185 1.85 72.63 3459 | 165 1.65 74.28 3487 | 164 1.64 75.92 3515 | 180 1.80 77.72 3544 | 129 1.29 79.01 3572 | 122 1.22 80.23 3600 | 108 1.08 81.31 3629 | 420 4.20 85.51 3657 | 106 1.06 86.57 3686 | 106 1.06 87.63 3714 | 110 1.10 88.73 3742 | 116 1.16 89.89 3771 | 82 0.82 90.71 3799 | 71 0.71 91.42 3827 | 65 0.65 92.07 3856 | 83 0.83 92.90 3884 | 71 0.71 93.61 3912 | 53 0.53 94.14 3941 | 61 0.61 94.75 3969 | 47 0.47 95.22 3997 | 37 0.37 95.59 4026 | 47 0.47 96.06 4054 | 30 0.30 96.36 4082 | 110 1.10 97.46 4111 | 17 0.17 97.63 4139 | 23 0.23 97.86 4167 | 28 0.28 98.14 4196 | 24 0.24 98.38 4224 | 25 0.25 98.63 4253 | 16 0.16 98.79 4281 | 12 0.12 98.91 4309 | 19 0.19 99.10 4338 | 7 0.07 99.17 4366 | 9 0.09 99.26 4394 | 7 0.07 99.33 4423 | 4 0.04 99.37 4451 | 5 0.05 99.42 4479 | 1 0.01 99.43 4508 | 5 0.05 99.48 4536 | 23 0.23 99.71 4564 | 3 0.03 99.74 4593 | 3 0.03 99.77 4621 | 2 0.02 99.79 4649 | 3 0.03 99.82 4678 | 1 0.01 99.83 4706 | 2 0.02 99.85 4734 | 2 0.02 99.87 4763 | 1 0.01 99.88 4791 | 1 0.01 99.89 4820 | 1 0.01 99.90 4961 | 1 0.01 99.91 5103 | 1 0.01 99.92 5131 | 1 0.01 99.93 5301 | 1 0.01 99.94 5443 | 1 0.01 99.95 6095 | 1 0.01 99.96 9999 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015