Frequencies for first 10,000 rows of age variable in demo2005q2 dataset : Numeric | value of | patient's | age at | event | Freq. Percent Cum. ------------+----------------------------------- 0 | 3 0.03 0.03 1 | 13 0.13 0.16 2 | 15 0.15 0.31 3 | 19 0.19 0.50 4 | 18 0.18 0.68 5 | 20 0.20 0.88 6 | 27 0.27 1.15 7 | 17 0.17 1.32 8 | 24 0.24 1.56 9 | 27 0.27 1.83 10 | 21 0.21 2.04 11 | 18 0.18 2.22 12 | 29 0.29 2.51 13 | 24 0.24 2.75 14 | 28 0.28 3.03 15 | 39 0.39 3.42 16 | 37 0.37 3.79 17 | 30 0.30 4.09 18 | 36 0.36 4.45 19 | 28 0.28 4.73 20 | 31 0.31 5.04 21 | 35 0.35 5.39 22 | 44 0.44 5.83 23 | 35 0.35 6.18 24 | 42 0.42 6.60 25 | 37 0.37 6.97 26 | 34 0.34 7.31 27 | 43 0.43 7.74 28 | 52 0.52 8.26 29 | 54 0.54 8.80 30 | 60 0.60 9.40 31 | 56 0.56 9.96 32 | 64 0.64 10.60 33 | 66 0.66 11.26 34 | 71 0.71 11.97 35 | 76 0.76 12.73 36 | 68 0.68 13.41 37 | 62 0.62 14.03 38 | 66 0.66 14.69 39 | 63 0.63 15.32 40 | 86 0.86 16.18 41 | 80 0.80 16.98 42 | 91 0.91 17.89 43 | 117 1.17 19.06 44 | 89 0.89 19.95 45 | 106 1.06 21.01 46 | 106 1.06 22.07 47 | 112 1.12 23.19 48 | 128 1.28 24.47 49 | 107 1.07 25.54 50 | 167 1.67 27.21 51 | 116 1.16 28.37 52 | 137 1.37 29.74 53 | 136 1.36 31.10 54 | 123 1.23 32.33 55 | 165 1.65 33.98 56 | 151 1.51 35.49 57 | 123 1.23 36.72 58 | 121 1.21 37.93 59 | 99 0.99 38.92 60 | 145 1.45 40.37 61 | 107 1.07 41.44 62 | 144 1.44 42.88 63 | 132 1.32 44.20 64 | 107 1.07 45.27 65 | 139 1.39 46.66 66 | 122 1.22 47.88 67 | 135 1.35 49.23 68 | 108 1.08 50.31 69 | 114 1.14 51.45 70 | 145 1.45 52.90 71 | 127 1.27 54.17 72 | 102 1.02 55.19 73 | 149 1.49 56.68 74 | 138 1.38 58.06 75 | 129 1.29 59.35 76 | 112 1.12 60.47 77 | 129 1.29 61.76 78 | 120 1.20 62.96 79 | 111 1.11 64.07 80 | 116 1.16 65.23 81 | 83 0.83 66.06 82 | 88 0.88 66.94 83 | 72 0.72 67.66 84 | 73 0.73 68.39 85 | 69 0.69 69.08 86 | 39 0.39 69.47 87 | 27 0.27 69.74 88 | 28 0.28 70.02 89 | 21 0.21 70.23 90 | 19 0.19 70.42 91 | 10 0.10 70.52 92 | 7 0.07 70.59 93 | 5 0.05 70.64 94 | 5 0.05 70.69 95 | 3 0.03 70.72 96 | 4 0.04 70.76 429 | 1 0.01 70.77 789 | 1 0.01 70.78 11652 | 1 0.01 70.79 21731 | 1 0.01 70.80 24726 | 1 0.01 70.81 26460 | 1 0.01 70.82 29026 | 1 0.01 70.83 31213 | 1 0.01 70.84 . | 2,916 29.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Dec 2015