| Date | Value |
|---|---|
| Dec 11, 2020 20:14 | 0.00 ppm |
| Dec 5, 2020 01:00 | 0.00 ppm |
| Nov 23, 2020 03:28 | 2 ppm |
| Nov 12, 2020 17:28 | 0.00 ppm |
| Nov 9, 2020 00:52 | 0.00 ppm |
| Oct 29, 2020 20:23 | 0.00 ppm |
| Oct 25, 2020 19:44 | 0.00 ppm |
| Oct 16, 2020 23:38 | 0.00 ppm |
| Oct 13, 2020 17:36 | 0.00 ppm |
| Oct 11, 2020 23:23 | 0.00 ppm |
| Oct 10, 2020 19:40 | 0.00 ppm |
| Oct 4, 2020 20:20 | 0.20 ppm |
| Sep 30, 2020 00:03 | 0.00 ppm |