| Date | Value |
|---|---|
| Feb 13, 2018 10:01 | 0.00 ppm |
| Nov 15, 2017 21:46 | 0.00 ppm |
| Jul 18, 2017 21:11 | 0.00 ppm |
| Apr 4, 2017 20:25 | 0.00 ppm |
| Mar 7, 2017 20:41 | 0.00 ppm |
| Feb 28, 2017 21:48 | 0.00 ppm |
| Feb 15, 2017 22:20 | 0.00 ppm |
| Feb 8, 2017 10:01 | 0.00 ppm |
| Feb 3, 2017 12:05 | 0.00 ppm |