| Date | Value |
|---|---|
| Feb 21, 2022 17:36 | 0.00 ppm |
| Dec 7, 2021 10:52 | 0.00 ppm |
| Oct 10, 2021 19:30 | 0.00 ppm |
| Jun 7, 2021 12:57 | 0.00 ppm |
| Mar 21, 2021 15:08 | 0.00 ppm |
| Jan 21, 2021 15:38 | 0.00 ppm |
| Jul 2, 2020 17:03 | 0.00 ppm |
| Apr 14, 2020 18:42 | 0.00 ppm |
| Feb 10, 2020 14:29 | 0.02 ppm |
| Dec 5, 2019 10:27 | 0.00 ppm |