| Date | Value |
|---|---|
| Jul 5, 2016 21:50 | 10 ppm |
| Jun 20, 2016 15:44 | 20 ppm |
| Jun 9, 2016 23:20 | 20 ppm |
| Apr 26, 2016 21:54 | 20 ppm |
| Apr 18, 2016 00:08 | 10 ppm |
| Apr 13, 2016 23:21 | 40 ppm |
| Apr 5, 2016 21:58 | 120 ppm |
| Apr 2, 2016 16:11 | 80 ppm |
| Mar 28, 2016 21:42 | 80 ppm |
| Mar 23, 2016 23:19 | 80 ppm |
| Mar 22, 2016 22:48 | 40 ppm |
| Mar 21, 2016 22:38 | 80 ppm |
| Mar 20, 2016 22:50 | 80 ppm |
| Mar 18, 2016 14:23 | 160 ppm |