Frequencies for first 10,000 rows of dlfd variable in natl1987 dataset : Detail | Interval | Since Last | Fetal Death | Freq. Percent Cum. ------------+----------------------------------- 0 | 1 0.01 0.01 1 | 3 0.03 0.04 2 | 2 0.02 0.06 3 | 2 0.02 0.08 4 | 4 0.04 0.12 8 | 4 0.04 0.16 9 | 11 0.11 0.27 10 | 35 0.35 0.62 11 | 65 0.65 1.27 12 | 71 0.71 1.98 13 | 51 0.51 2.49 14 | 47 0.47 2.96 15 | 33 0.33 3.29 16 | 33 0.33 3.62 17 | 36 0.36 3.98 18 | 29 0.29 4.27 19 | 34 0.34 4.61 20 | 18 0.18 4.79 21 | 19 0.19 4.98 22 | 21 0.21 5.19 23 | 20 0.20 5.39 24 | 18 0.18 5.57 25 | 25 0.25 5.82 26 | 19 0.19 6.01 27 | 16 0.16 6.17 28 | 6 0.06 6.23 29 | 9 0.09 6.32 30 | 14 0.14 6.46 31 | 14 0.14 6.60 32 | 9 0.09 6.69 33 | 9 0.09 6.78 34 | 19 0.19 6.97 35 | 15 0.15 7.12 36 | 8 0.08 7.20 37 | 9 0.09 7.29 38 | 4 0.04 7.33 39 | 12 0.12 7.45 40 | 9 0.09 7.54 41 | 9 0.09 7.63 42 | 13 0.13 7.76 43 | 15 0.15 7.91 44 | 6 0.06 7.97 45 | 7 0.07 8.04 46 | 13 0.13 8.17 47 | 13 0.13 8.30 48 | 5 0.05 8.35 49 | 8 0.08 8.43 50 | 7 0.07 8.50 51 | 3 0.03 8.53 52 | 5 0.05 8.58 53 | 10 0.10 8.68 54 | 4 0.04 8.72 55 | 6 0.06 8.78 56 | 7 0.07 8.85 57 | 5 0.05 8.90 58 | 1 0.01 8.91 59 | 6 0.06 8.97 60 | 5 0.05 9.02 61 | 4 0.04 9.06 62 | 6 0.06 9.12 63 | 3 0.03 9.15 64 | 2 0.02 9.17 65 | 1 0.01 9.18 66 | 3 0.03 9.21 67 | 4 0.04 9.25 68 | 5 0.05 9.30 69 | 5 0.05 9.35 70 | 2 0.02 9.37 71 | 3 0.03 9.40 72 | 6 0.06 9.46 73 | 4 0.04 9.50 74 | 5 0.05 9.55 75 | 2 0.02 9.57 76 | 7 0.07 9.64 77 | 5 0.05 9.69 78 | 2 0.02 9.71 79 | 1 0.01 9.72 80 | 5 0.05 9.77 81 | 5 0.05 9.82 82 | 1 0.01 9.83 84 | 5 0.05 9.88 86 | 4 0.04 9.92 87 | 5 0.05 9.97 88 | 2 0.02 9.99 89 | 1 0.01 10.00 90 | 3 0.03 10.03 91 | 5 0.05 10.08 92 | 2 0.02 10.10 93 | 3 0.03 10.13 94 | 2 0.02 10.15 95 | 2 0.02 10.17 97 | 2 0.02 10.19 98 | 3 0.03 10.22 99 | 1 0.01 10.23 100 | 3 0.03 10.26 101 | 2 0.02 10.28 102 | 2 0.02 10.30 103 | 5 0.05 10.35 104 | 2 0.02 10.37 106 | 3 0.03 10.40 107 | 1 0.01 10.41 108 | 2 0.02 10.43 109 | 2 0.02 10.45 111 | 1 0.01 10.46 112 | 1 0.01 10.47 113 | 1 0.01 10.48 114 | 1 0.01 10.49 115 | 2 0.02 10.51 118 | 2 0.02 10.53 119 | 2 0.02 10.55 123 | 1 0.01 10.56 124 | 1 0.01 10.57 125 | 4 0.04 10.61 126 | 1 0.01 10.62 128 | 1 0.01 10.63 129 | 1 0.01 10.64 131 | 1 0.01 10.65 133 | 1 0.01 10.66 139 | 1 0.01 10.67 140 | 2 0.02 10.69 146 | 1 0.01 10.70 148 | 1 0.01 10.71 149 | 1 0.01 10.72 151 | 1 0.01 10.73 152 | 1 0.01 10.74 154 | 1 0.01 10.75 163 | 1 0.01 10.76 165 | 1 0.01 10.77 166 | 2 0.02 10.79 170 | 1 0.01 10.80 177 | 1 0.01 10.81 178 | 1 0.01 10.82 179 | 1 0.01 10.83 180 | 1 0.01 10.84 181 | 1 0.01 10.85 218 | 1 0.01 10.86 238 | 1 0.01 10.87 241 | 1 0.01 10.88 256 | 1 0.01 10.89 777 | 8,217 82.17 93.06 999 | 694 6.94 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016