| Date | Value |
|---|---|
| Jul 20, 2015 15:35 | 5 ppm |
| Jul 14, 2015 13:26 | 10 ppm |
| Jul 8, 2015 13:59 | 10 ppm |
| Jul 3, 2015 14:29 | 10 ppm |
| Jun 19, 2015 13:39 | 10 ppm |
| Jun 16, 2015 17:57 | 10 ppm |
| Jun 12, 2015 18:44 | 5 ppm |
| Jun 9, 2015 23:41 | 5 ppm |
| Jun 9, 2015 18:43 | 5 ppm |
| Jun 5, 2015 18:43 | 25 ppm |
| Jun 3, 2015 18:43 | 10 ppm |
| Jun 2, 2015 23:36 | 10 ppm |
| Jun 2, 2015 18:42 | 10 ppm |
| Jun 1, 2015 18:42 | 10 ppm |
| Jun 1, 2015 18:15 | 10 ppm |