Frequencies for first 10,000 rows of importdate variable in servarea2017 dataset : Import Date | Freq. Percent Cum. --------------------+----------------------------------- 2016-05-11 11:53:06 | 72 0.72 0.72 2016-05-12 11:31:06 | 57 0.57 1.29 2016-05-16 23:14:35 | 284 2.84 4.13 2016-05-23 13:30:57 | 1 0.01 4.14 2016-06-01 23:04:04 | 2 0.02 4.16 2016-06-10 03:02:05 | 42 0.42 4.58 2016-06-18 03:07:04 | 3 0.03 4.61 2016-06-22 03:04:47 | 2 0.02 4.63 2016-06-23 03:05:53 | 140 1.40 6.03 2016-06-24 02:40:05 | 6 0.06 6.09 2016-06-25 15:13:19 | 11 0.11 6.20 2016-06-26 07:33:26 | 4 0.04 6.24 2016-06-28 02:39:00 | 81 0.81 7.05 2016-06-29 04:36:58 | 105 1.05 8.10 2016-07-01 08:12:23 | 405 4.05 12.15 2016-07-01 17:23:52 | 330 3.30 15.45 2016-07-06 06:54:55 | 1 0.01 15.46 2016-07-12 07:07:21 | 1 0.01 15.47 2016-07-19 02:54:01 | 1 0.01 15.48 2016-07-20 03:02:32 | 1 0.01 15.49 2016-07-28 02:40:10 | 272 2.72 18.21 2016-08-03 04:06:06 | 1 0.01 18.22 2016-08-04 02:29:22 | 234 2.34 20.56 2016-08-05 02:57:02 | 162 1.62 22.18 2016-08-09 02:37:57 | 1 0.01 22.19 2016-08-10 02:51:42 | 4 0.04 22.23 2016-08-11 02:30:27 | 1 0.01 22.24 2016-08-12 02:50:28 | 3 0.03 22.27 2016-08-15 07:42:31 | 26 0.26 22.53 2016-08-16 03:04:39 | 31 0.31 22.84 2016-08-17 03:19:03 | 2 0.02 22.86 2016-08-18 02:41:03 | 6 0.06 22.92 2016-08-18 04:06:30 | 1 0.01 22.93 2016-08-19 02:25:56 | 291 2.91 25.84 2016-08-19 03:49:17 | 722 7.22 33.06 2016-08-20 07:40:33 | 128 1.28 34.34 2016-08-20 11:23:22 | 62 0.62 34.96 2016-08-21 04:30:14 | 1 0.01 34.97 2016-08-21 07:17:17 | 10 0.10 35.07 2016-08-23 02:28:31 | 26 0.26 35.33 2016-08-23 04:37:23 | 10 0.10 35.43 2016-08-24 02:30:21 | 61 0.61 36.04 2016-08-24 05:44:16 | 370 3.70 39.74 2016-08-25 02:24:34 | 7 0.07 39.81 2016-08-25 03:47:19 | 140 1.40 41.21 2016-08-26 03:12:28 | 103 1.03 42.24 2016-08-30 08:46:54 | 22 0.22 42.46 2016-09-01 07:41:30 | 388 3.88 46.34 2016-09-14 22:21:51 | 128 1.28 47.62 2016-09-28 03:28:44 | 65 0.65 48.27 2016-09-28 04:33:02 | 3 0.03 48.30 2016-09-29 04:19:41 | 212 2.12 50.42 2016-10-12 08:34:00 | 8 0.08 50.50 2016-10-13 03:13:09 | 211 2.11 52.61 2016-10-18 03:04:46 | 90 0.90 53.51 2016-10-18 04:56:11 | 15 0.15 53.66 2016-10-19 02:44:25 | 146 1.46 55.12 2016-10-19 03:51:02 | 32 0.32 55.44 2016-10-21 02:45:44 | 2 0.02 55.46 2016-11-15 02:20:22 | 63 0.63 56.09 2016-11-16 02:20:23 | 2 0.02 56.11 2016-11-16 22:15:47 | 100 1.00 57.11 2016-11-17 02:20:17 | 8 0.08 57.19 2016-11-17 20:15:39 | 56 0.56 57.75 2016-11-18 20:15:51 | 14 0.14 57.89 2016-11-19 04:47:33 | 82 0.82 58.71 2016-11-20 20:15:52 | 254 2.54 61.25 2016-11-22 20:15:54 | 1 0.01 61.26 2017-01-19 02:20:17 | 354 3.54 64.80 2017-01-19 20:15:29 | 160 1.60 66.40 2017-01-20 09:19:19 | 580 5.80 72.20 2017-01-21 03:35:28 | 144 1.44 73.64 2017-01-22 20:15:32 | 39 0.39 74.03 2017-01-23 20:15:25 | 91 0.91 74.94 2017-01-24 02:20:16 | 8 0.08 75.02 2017-01-24 20:15:29 | 277 2.77 77.79 2017-01-25 02:20:17 | 518 5.18 82.97 2017-01-25 20:15:24 | 95 0.95 83.92 2017-01-31 20:15:24 | 259 2.59 86.51 2017-03-18 05:10:20 | 1 0.01 86.52 2017-03-25 15:17:19 | 1 0.01 86.53 2017-04-20 07:50:26 | 207 2.07 88.60 2017-04-20 20:15:32 | 22 0.22 88.82 2017-04-21 20:15:32 | 241 2.41 91.23 2017-04-24 20:15:32 | 123 1.23 92.46 2017-04-25 20:15:31 | 528 5.28 97.74 2017-04-26 02:48:20 | 226 2.26 100.00 --------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 Dec 2017