Item history:
| Price | Date |
| $17.57 | 2010-08-27 21:12:43 |
| $17.85 | 2010-08-27 17:10:48 |
| $17.48 | 2010-08-27 11:08:49 |
| $16.24 | 2010-08-02 00:14:26 |
| $16.88 | 2010-08-01 22:13:26 |
| $16.24 | 2010-08-01 04:04:53 |
| $16.88 | 2010-08-01 02:03:53 |
| $16.54 | 2010-07-31 22:01:20 |
| $16.88 | 2010-07-31 20:00:23 |
| $16.24 | 2010-07-31 17:59:15 |
| $16.54 | 2010-07-31 15:58:18 |
| $16.24 | 2010-07-31 13:57:20 |
| $16.88 | 2010-07-31 11:56:23 |
| $16.54 | 2010-07-31 07:54:15 |
| $16.24 | 2010-07-31 03:52:31 |
| $16.88 | 2010-07-31 01:51:36 |
| $16.54 | 2010-07-30 23:50:17 |
| $16.24 | 2010-07-30 19:48:15 |
| $16.88 | 2010-07-30 17:47:15 |
| $16.54 | 2010-07-30 15:46:17 |
| $16.24 | 2010-07-30 07:42:09 |
| $16.88 | 2010-07-30 05:41:11 |
| $16.24 | 2010-07-30 03:40:38 |
| $16.88 | 2010-07-29 23:38:11 |
| $16.54 | 2010-07-29 21:37:08 |
| $16.88 | 2010-07-29 17:35:10 |
| $16.54 | 2010-07-29 15:34:13 |
| $16.24 | 2010-07-29 11:32:35 |
| $16.88 | 2010-07-29 09:31:19 |
| $16.24 | 2010-07-29 05:29:08 |
| $16.88 | 2010-07-29 03:28:25 |
| $16.24 | 2010-07-29 01:27:12 |
| $16.54 | 2010-07-28 23:26:13 |
| $16.88 | 2010-07-28 21:25:09 |
| $16.24 | 2010-07-28 17:23:15 |
| $16.88 | 2010-07-28 15:22:15 |
| $16.24 | 2010-07-28 11:20:09 |
| $16.88 | 2010-07-28 09:19:10 |
| $16.24 | 2010-07-28 05:17:16 |
| $16.88 | 2010-07-28 03:16:27 |
| $16.24 | 2010-07-27 23:14:09 |
| $16.88 | 2010-07-27 21:13:13 |
| $16.24 | 2010-07-27 17:11:10 |
| $16.88 | 2010-07-27 15:10:19 |
| $16.24 | 2010-07-27 11:08:12 |
| $16.88 | 2010-07-27 09:07:11 |
| $16.24 | 2010-07-27 07:06:13 |
| $16.54 | 2010-07-27 05:05:12 |
| $16.24 | 2010-07-27 01:03:11 |
| $16.54 | 2010-07-26 23:02:08 |
| $16.24 | 2010-07-26 19:00:23 |
| $16.54 | 2010-07-26 16:59:10 |
| $16.24 | 2010-07-26 12:57:11 |
| $16.54 | 2010-07-26 10:56:08 |
| $16.24 | 2010-07-26 06:53:58 |
| $16.88 | 2010-07-26 02:52:10 |
| $16.24 | 2010-07-26 00:50:53 |
| $16.54 | 2010-07-25 22:49:53 |
| $16.88 | 2010-07-25 20:48:49 |
| $16.24 | 2010-07-25 18:47:53 |
| $16.54 | 2010-07-25 16:46:55 |
| $16.88 | 2010-07-25 14:45:57 |
| $16.24 | 2010-07-25 12:44:54 |
| $16.88 | 2010-07-25 08:42:51 |
| $16.24 | 2010-07-25 06:41:49 |
| $16.54 | 2010-07-25 04:40:49 |
| $16.88 | 2010-07-25 00:38:49 |
| $16.24 | 2010-07-24 20:36:49 |
| $16.88 | 2010-07-24 18:35:48 |
| $16.24 | 2010-07-24 16:34:49 |
| $16.54 | 2010-07-24 14:33:51 |
| $16.88 | 2010-07-24 12:33:18 |
| $16.24 | 2010-07-24 08:33:33 |
| $16.88 | 2010-07-24 06:32:18 |
| $16.24 | 2010-07-24 02:31:22 |
| $16.88 | 2010-07-24 00:28:32 |
| $16.24 | 2010-07-23 22:27:33 |
| $16.54 | 2010-07-23 20:26:39 |
| $16.88 | 2010-07-23 18:25:50 |
| $16.24 | 2010-07-23 14:24:14 |
| $16.88 | 2010-07-23 12:23:31 |
| $16.24 | 2010-07-23 08:22:33 |
| $16.88 | 2010-07-23 06:19:59 |
| $16.24 | 2010-07-23 02:18:48 |
| $16.88 | 2010-07-23 00:16:48 |
| $16.24 | 2010-07-22 20:14:44 |
| $16.88 | 2010-07-22 18:13:48 |
| $16.24 | 2010-07-22 12:11:09 |
| $16.88 | 2010-07-22 02:07:38 |
| $16.24 | 2010-07-22 00:05:37 |
| $16.88 | 2010-07-21 22:04:33 |
| $16.24 | 2010-07-21 18:02:42 |
| $16.88 | 2010-07-21 16:01:41 |
| $16.24 | 2010-07-21 11:59:40 |
| $16.88 | 2010-07-21 09:59:03 |
| $16.24 | 2010-07-21 05:57:56 |
| $16.88 | 2010-07-21 03:57:02 |
| $16.24 | 2010-07-21 01:55:27 |
| $16.54 | 2010-07-20 23:53:31 |
| $16.88 | 2010-07-20 21:52:30 |
| $16.24 | 2010-07-20 17:50:42 |
| $16.88 | 2010-07-20 15:49:35 |
| $16.24 | 2010-07-20 11:48:17 |
| $16.88 | 2010-07-20 09:47:22 |
| $16.24 | 2010-07-20 07:46:14 |
| $16.54 | 2010-07-20 05:44:55 |
| $16.24 | 2010-07-19 23:41:33 |
| $16.88 | 2010-07-19 21:40:32 |
| $16.24 | 2010-07-19 17:38:34 |
| $16.88 | 2010-07-19 15:37:47 |
| $16.24 | 2010-07-19 13:36:45 |
| $16.88 | 2010-07-19 11:36:05 |
| $16.24 | 2010-07-19 09:34:58 |
| $16.88 | 2010-07-19 07:34:56 |
| $16.24 | 2010-07-19 05:32:27 |
| $16.88 | 2010-07-19 03:32:19 |
| $16.24 | 2010-07-19 01:30:33 |
| $16.54 | 2010-07-18 23:28:46 |
| $16.88 | 2010-07-18 21:27:41 |
| $16.24 | 2010-07-18 17:25:48 |
| $16.88 | 2010-07-18 15:24:49 |
| $16.24 | 2010-07-18 11:22:41 |
| $16.88 | 2010-07-18 09:21:45 |
| $16.24 | 2010-07-18 05:19:38 |
| $16.88 | 2010-07-18 03:19:37 |
| $16.24 | 2010-07-18 01:17:50 |
| $16.88 | 2010-07-17 21:15:39 |
| $16.24 | 2010-07-17 17:13:33 |
| $16.88 | 2010-07-17 09:09:29 |
| $16.24 | 2010-07-17 07:08:32 |
| $16.54 | 2010-07-17 05:07:32 |
| $16.24 | 2010-07-17 01:05:32 |
| $16.54 | 2010-07-16 23:04:33 |
| $16.88 | 2010-07-16 21:03:38 |
| $16.24 | 2010-07-16 19:02:36 |
| $16.54 | 2010-07-16 17:01:41 |
| $16.88 | 2010-07-16 15:00:42 |
| $16.24 | 2010-07-16 13:01:27 |
| $16.54 | 2010-07-16 10:59:40 |
| $16.88 | 2010-07-16 08:58:44 |
| $16.24 | 2010-07-16 06:57:50 |
| $16.54 | 2010-07-16 04:56:30 |
| $16.88 | 2010-07-16 02:56:20 |
| $16.24 | 2010-07-16 00:54:16 |
| $16.54 | 2010-07-15 22:53:16 |
| $16.88 | 2010-07-15 20:52:22 |
| $16.24 | 2010-07-15 18:51:17 |
| $16.88 | 2010-07-15 14:49:52 |
| $16.24 | 2010-07-15 12:48:46 |
| $16.88 | 2010-07-15 10:48:39 |
| $16.54 | 2010-05-20 23:42:56 |
| $18.05 | 2010-05-20 19:40:50 |
| $17.24 | 2010-05-20 17:39:45 |
| $16.54 | 2010-05-19 19:28:49 |
| $18.05 | 2010-05-19 17:28:13 |
| $16.54 | 2010-05-19 15:26:54 |
| $16.28 | 2010-05-19 13:26:16 |
| $18.05 | 2010-05-19 09:24:03 |
| $16.28 | 2010-05-19 07:23:18 |
| $16.54 | 2010-05-07 03:07:49 |
| $15.99 | 2010-05-04 18:40:55 |
| $16.54 | 2010-04-28 11:31:36 |
| $17.27 | 2010-04-27 11:18:48 |
| $17.53 | 2010-04-26 19:12:48 |
| $17.79 | 2010-04-26 13:09:52 |
| $18.06 | 2010-04-22 18:32:37 |
| $17.68 | 2010-04-22 12:30:01 |
| $17.50 | 2010-04-21 22:25:12 |
| $17.76 | 2010-04-15 11:18:42 |
| $17.19 | 2010-04-14 17:10:58 |
| $17.74 | 2010-04-14 11:09:21 |
| $15.74 | 2010-04-14 09:08:53 |
| $17.74 | 2010-04-06 17:51:55 |
| $17.48 | 2010-04-06 15:51:46 |
| $17.74 | 2010-04-06 11:49:56 |
| $17.48 | 2010-03-30 18:27:54 |
| $17.74 | 2010-03-30 12:25:00 |
| $17.55 | 2010-03-26 13:40:16 |
| $18.08 | 2010-03-26 07:37:23 |
| $17.76 | 2010-03-25 21:31:59 |
| $17.58 | 2010-03-25 13:27:57 |
| $18.08 | 2010-03-25 07:25:07 |
| $17.73 | 2010-03-24 21:21:08 |
| $17.55 | 2010-03-24 13:16:53 |
| $18.08 | 2010-03-23 17:07:52 |
| $17.81 | 2010-03-23 13:05:58 |
| $18.08 | 2010-03-22 16:55:56 |
| $17.73 | 2010-03-19 06:18:37 |
| $17.20 | 2010-03-19 02:17:03 |
| $17.73 | 2010-03-15 15:34:55 |
| $17.97 | 2010-03-15 07:31:54 |
| $17.79 | 2010-03-12 12:02:07 |
| $17.55 | 2010-03-12 10:01:30 |
| $17.73 | 2010-03-11 21:54:53 |
| $17.91 | 2010-03-11 13:52:07 |
| $17.73 | 2010-03-10 17:44:06 |
| $18.10 | 2010-03-05 00:38:54 |
| $17.78 | 2010-03-04 20:36:55 |
| $18.00 | 2010-03-04 18:35:57 |
| $19.17 | 2010-03-04 16:34:54 |
| $18.96 | 2010-03-01 11:58:53 |
| $18.72 | 2010-03-01 07:56:52 |
| $19.22 | 2010-02-26 17:26:50 |
| $23.35 | 2010-02-25 17:14:46 |
| $15.05 | 2010-02-25 05:09:57 |
| $23.35 | 2010-02-18 21:55:47 |
| $23.77 | 2010-02-15 15:19:18 |
| $25.77 | 2010-02-15 13:18:28 |
| $27.80 | 2010-02-11 14:32:20 |
| $27.49 | 2010-02-10 12:18:27 |
| $29.99 | 2010-02-10 04:16:03 |
| $26.65 | 2010-02-09 22:12:51 |
| $17.99 | 2010-02-09 02:02:30 |
| $26.65 | 2010-01-21 18:44:17 |
| $26.92 | 2010-01-21 16:43:09 |
| $27.49 | 2010-01-21 12:41:25 |
| $27.99 | 2010-01-18 18:08:14 |
| $29.98 | 2010-01-15 19:33:59 |
| $27.99 | 2010-01-12 17:00:40 |
| $26.65 | 2010-01-08 03:35:15 |
| $21.86 | 2010-01-08 01:34:05 |
| $26.65 | 2010-01-06 21:19:57 |
| $26.92 | 2010-01-06 17:17:58 |
| $27.49 | 2010-01-06 13:16:04 |
| $27.99 | 2010-01-05 00:57:49 |
| $29.98 | 2010-01-03 00:34:48 |
| $27.99 | 2009-12-31 12:07:20 |
| $29.98 | 2009-12-30 23:59:53 |
| $27.99 | 2009-12-28 15:29:58 |
| $29.98 | 2009-12-21 12:01:56 |
| $29.48 | 2009-12-21 10:01:51 |
| $29.98 | 2009-12-19 21:43:48 |
| $27.99 | 2009-12-18 19:30:59 |
| $29.99 | 2009-12-11 12:04:52 |
| $29.49 | 2009-12-11 08:02:52 |
| $28.99 | 2009-12-11 02:00:18 |
| $29.49 | 2009-12-10 11:52:53 |
| $29.99 | 2009-12-07 05:15:34 |
| $28.99 | 2009-12-07 03:15:53 |
| $29.49 | 2009-12-07 01:13:18 |
| $29.99 | 2009-12-05 10:53:53 |
| $28.99 | 2009-12-05 08:52:51 |
| $29.49 | 2009-12-05 06:51:56 |
| $29.99 | 2009-12-04 10:41:56 |
| $28.13 | 2009-12-02 06:16:50 |
| $23.47 | 2009-12-02 02:15:02 |
| $28.49 | 2009-12-01 14:08:53 |
| $28.99 | 2009-12-01 12:07:53 |
| $29.99 | 2009-12-01 02:02:50 |
| $33.99 | 2009-11-28 01:29:23 |
| $24.98 | 2009-11-27 01:16:46 |
| $32.10 | 2009-11-26 15:09:48 |
| $33.10 | 2009-11-26 13:08:53 |
| $33.60 | 2009-11-26 11:07:48 |
| $34.60 | 2009-11-26 05:04:50 |
| $26.10 | 2009-11-25 18:59:48 |
| $27.10 | 2009-11-25 14:57:50 |
| $27.60 | 2009-11-25 12:56:47 |
| $28.10 | 2009-11-25 10:55:57 |
| $28.60 | 2009-11-25 08:54:57 |
| $29.10 | 2009-11-25 06:53:47 |
| $29.60 | 2009-11-25 02:52:22 |
| $30.10 | 2009-11-24 20:48:48 |
| $30.60 | 2009-11-24 18:47:50 |
| $31.10 | 2009-11-24 16:46:54 |
| $31.60 | 2009-11-24 14:45:59 |
| $32.10 | 2009-11-24 10:43:50 |
| $32.60 | 2009-11-24 08:42:56 |
| $33.10 | 2009-11-24 06:41:49 |
| $33.60 | 2009-11-23 20:36:47 |
| $34.60 | 2009-11-23 18:35:52 |
| $34.99 | 2009-11-23 16:34:49 |
| $35.49 | 2009-11-23 12:32:49 |
| $36.49 | 2009-11-23 08:30:51 |
| $36.99 | 2009-11-23 02:28:09 |