Frequencies for first 10,000 rows of importdate variable in servarea2015 dataset : Import Date | Freq. Percent Cum. --------------------+----------------------------------- 2014-06-21 03:20:41 | 1 0.01 0.01 2014-06-25 03:28:48 | 2 0.02 0.03 2014-06-27 08:32:44 | 1 0.01 0.04 2014-08-03 08:59:32 | 82 0.82 0.86 2014-08-05 13:28:44 | 86 0.86 1.72 2014-08-06 08:27:55 | 13 0.13 1.85 2014-08-07 10:00:19 | 211 2.11 3.96 2014-08-08 08:53:29 | 39 0.39 4.35 2014-08-09 13:12:30 | 2 0.02 4.37 2014-08-11 09:11:26 | 7 0.07 4.44 2014-08-12 09:41:38 | 2 0.02 4.46 2014-08-15 09:47:40 | 103 1.03 5.49 2014-08-19 08:34:41 | 4 0.04 5.53 2014-08-23 04:11:13 | 101 1.01 6.54 2014-08-27 03:27:11 | 529 5.29 11.83 2014-08-28 04:23:13 | 89 0.89 12.72 2014-08-29 03:26:18 | 2 0.02 12.74 2014-08-31 07:07:13 | 5 0.05 12.79 2014-09-03 04:28:59 | 15 0.15 12.94 2014-09-04 03:25:43 | 268 2.68 15.62 2014-09-04 06:14:21 | 2 0.02 15.64 2014-09-05 03:32:16 | 66 0.66 16.30 2014-09-06 03:39:47 | 460 4.60 20.90 2014-09-07 12:14:41 | 2 0.02 20.92 2014-09-09 16:12:42 | 12 0.12 21.04 2014-09-10 06:01:28 | 37 0.37 21.41 2014-09-11 12:10:19 | 20 0.20 21.61 2014-09-12 09:45:59 | 1 0.01 21.62 2014-09-13 04:19:20 | 1 0.01 21.63 2014-09-29 21:43:29 | 99 0.99 22.62 2014-10-02 12:25:15 | 286 2.86 25.48 2014-10-03 13:54:42 | 172 1.72 27.20 2014-10-05 17:13:14 | 328 3.28 30.48 2014-10-06 10:59:03 | 40 0.40 30.88 2014-10-28 20:25:58 | 33 0.33 31.21 2014-11-04 20:29:03 | 4 0.04 31.25 2014-11-09 04:38:15 | 517 5.17 36.42 2014-11-11 04:41:18 | 439 4.39 40.81 2014-11-12 05:24:58 | 242 2.42 43.23 2014-11-13 10:25:37 | 121 1.21 44.44 2014-11-13 16:11:17 | 33 0.33 44.77 2014-11-14 05:23:27 | 302 3.02 47.79 2014-11-14 14:52:18 | 7 0.07 47.86 2014-11-15 04:52:41 | 398 3.98 51.84 2014-11-15 10:06:04 | 152 1.52 53.36 2014-11-24 15:19:06 | 6 0.06 53.42 2014-12-06 05:18:25 | 146 1.46 54.88 2014-12-09 03:57:54 | 27 0.27 55.15 2014-12-10 11:54:40 | 146 1.46 56.61 2014-12-11 04:09:12 | 499 4.99 61.60 2014-12-12 09:23:47 | 164 1.64 63.24 2014-12-12 12:37:36 | 219 2.19 65.43 2015-01-16 17:32:32 | 1,062 10.62 76.05 2015-01-17 03:15:53 | 198 1.98 78.03 2015-01-20 13:44:26 | 34 0.34 78.37 2015-01-21 09:35:36 | 22 0.22 78.59 2015-01-22 10:35:59 | 15 0.15 78.74 2015-01-22 16:02:51 | 2 0.02 78.76 2015-01-23 09:32:01 | 10 0.10 78.86 2015-01-23 12:43:55 | 219 2.19 81.05 2015-01-26 08:44:00 | 3 0.03 81.08 2015-01-30 09:51:15 | 16 0.16 81.24 2015-02-12 14:27:33 | 35 0.35 81.59 2015-02-13 08:19:48 | 4 0.04 81.63 2015-02-14 07:15:27 | 13 0.13 81.76 2015-02-18 06:26:47 | 70 0.70 82.46 2015-02-19 06:21:02 | 485 4.85 87.31 2015-02-20 06:27:36 | 22 0.22 87.53 2015-02-20 08:57:57 | 42 0.42 87.95 2015-02-22 21:18:17 | 81 0.81 88.76 2015-04-22 11:06:15 | 174 1.74 90.50 2015-05-20 14:11:45 | 33 0.33 90.83 2015-05-22 14:18:43 | 3 0.03 90.86 2015-06-19 13:25:37 | 208 2.08 92.94 2015-06-19 18:30:37 | 4 0.04 92.98 2015-07-22 09:15:52 | 496 4.96 97.94 2015-07-22 12:46:44 | 5 0.05 97.99 2015-07-24 22:33:25 | 201 2.01 100.00 --------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 9 Dec 2017