| Date | Value |
|---|---|
| Oct 9, 2016 14:47 | 0.00 ppm |
| Oct 1, 2016 13:12 | 0.50 ppm |
| Sep 24, 2016 21:03 | 0.00 ppm |
| Sep 13, 2016 20:28 | 0.05 ppm |
| Sep 10, 2016 00:48 | 0.30 ppm |
| Sep 6, 2016 21:12 | 0.30 ppm |
| Sep 5, 2016 01:08 | 1 ppm |
| Sep 3, 2016 12:12 | 1.2 ppm |
| Sep 1, 2016 19:21 | 1.2 ppm |
| Aug 27, 2016 11:35 | 0.80 ppm |
| Aug 22, 2016 21:12 | 0.05 ppm |