Frequencies for first 10,000 rows of dlfd variable in natl1988 dataset : Detail | Interval | Since Last | Fetal Death | Freq. Percent Cum. ------------+----------------------------------- 6 | 2 0.02 0.02 7 | 5 0.05 0.07 8 | 3 0.03 0.10 9 | 16 0.16 0.26 10 | 43 0.43 0.69 11 | 58 0.58 1.27 12 | 49 0.49 1.76 13 | 63 0.63 2.39 14 | 50 0.50 2.89 15 | 52 0.52 3.41 16 | 33 0.33 3.74 17 | 31 0.31 4.05 18 | 33 0.33 4.38 19 | 24 0.24 4.62 20 | 21 0.21 4.83 21 | 20 0.20 5.03 22 | 19 0.19 5.22 23 | 14 0.14 5.36 24 | 17 0.17 5.53 25 | 24 0.24 5.77 26 | 18 0.18 5.95 27 | 18 0.18 6.13 28 | 15 0.15 6.28 29 | 12 0.12 6.40 30 | 12 0.12 6.52 31 | 21 0.21 6.73 32 | 13 0.13 6.86 33 | 15 0.15 7.01 34 | 16 0.16 7.17 35 | 22 0.22 7.39 36 | 15 0.15 7.54 37 | 10 0.10 7.64 38 | 10 0.10 7.74 39 | 11 0.11 7.85 40 | 3 0.03 7.88 41 | 9 0.09 7.97 42 | 9 0.09 8.06 43 | 10 0.10 8.16 44 | 9 0.09 8.25 45 | 2 0.02 8.27 46 | 7 0.07 8.34 47 | 12 0.12 8.46 48 | 12 0.12 8.58 49 | 4 0.04 8.62 50 | 5 0.05 8.67 51 | 5 0.05 8.72 52 | 7 0.07 8.79 53 | 13 0.13 8.92 54 | 4 0.04 8.96 55 | 8 0.08 9.04 56 | 4 0.04 9.08 57 | 8 0.08 9.16 58 | 5 0.05 9.21 59 | 9 0.09 9.30 60 | 4 0.04 9.34 61 | 7 0.07 9.41 62 | 4 0.04 9.45 63 | 3 0.03 9.48 64 | 4 0.04 9.52 65 | 5 0.05 9.57 66 | 7 0.07 9.64 67 | 2 0.02 9.66 68 | 3 0.03 9.69 69 | 7 0.07 9.76 70 | 2 0.02 9.78 71 | 10 0.10 9.88 72 | 4 0.04 9.92 73 | 6 0.06 9.98 74 | 3 0.03 10.01 75 | 2 0.02 10.03 76 | 1 0.01 10.04 77 | 6 0.06 10.10 78 | 5 0.05 10.15 79 | 5 0.05 10.20 80 | 1 0.01 10.21 81 | 3 0.03 10.24 82 | 3 0.03 10.27 83 | 3 0.03 10.30 84 | 4 0.04 10.34 86 | 4 0.04 10.38 87 | 2 0.02 10.40 88 | 1 0.01 10.41 89 | 2 0.02 10.43 90 | 3 0.03 10.46 91 | 2 0.02 10.48 92 | 6 0.06 10.54 93 | 6 0.06 10.60 94 | 4 0.04 10.64 95 | 2 0.02 10.66 96 | 3 0.03 10.69 97 | 6 0.06 10.75 99 | 1 0.01 10.76 100 | 5 0.05 10.81 101 | 1 0.01 10.82 102 | 3 0.03 10.85 103 | 3 0.03 10.88 104 | 1 0.01 10.89 105 | 1 0.01 10.90 107 | 5 0.05 10.95 108 | 2 0.02 10.97 110 | 2 0.02 10.99 111 | 1 0.01 11.00 112 | 2 0.02 11.02 115 | 1 0.01 11.03 116 | 2 0.02 11.05 117 | 5 0.05 11.10 118 | 4 0.04 11.14 119 | 3 0.03 11.17 120 | 7 0.07 11.24 121 | 3 0.03 11.27 122 | 1 0.01 11.28 123 | 2 0.02 11.30 124 | 2 0.02 11.32 126 | 1 0.01 11.33 127 | 4 0.04 11.37 129 | 1 0.01 11.38 131 | 3 0.03 11.41 132 | 2 0.02 11.43 133 | 1 0.01 11.44 134 | 3 0.03 11.47 135 | 1 0.01 11.48 136 | 2 0.02 11.50 137 | 1 0.01 11.51 139 | 3 0.03 11.54 140 | 1 0.01 11.55 141 | 2 0.02 11.57 142 | 2 0.02 11.59 143 | 1 0.01 11.60 144 | 3 0.03 11.63 145 | 1 0.01 11.64 146 | 1 0.01 11.65 148 | 1 0.01 11.66 149 | 1 0.01 11.67 150 | 1 0.01 11.68 152 | 1 0.01 11.69 154 | 1 0.01 11.70 156 | 3 0.03 11.73 157 | 3 0.03 11.76 160 | 2 0.02 11.78 162 | 1 0.01 11.79 163 | 3 0.03 11.82 164 | 1 0.01 11.83 166 | 1 0.01 11.84 167 | 1 0.01 11.85 169 | 1 0.01 11.86 174 | 1 0.01 11.87 175 | 1 0.01 11.88 176 | 1 0.01 11.89 180 | 1 0.01 11.90 182 | 1 0.01 11.91 186 | 1 0.01 11.92 190 | 2 0.02 11.94 191 | 1 0.01 11.95 197 | 1 0.01 11.96 200 | 1 0.01 11.97 207 | 1 0.01 11.98 212 | 1 0.01 11.99 777 | 8,148 81.48 93.47 999 | 653 6.53 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016