| Date | Value |
|---|---|
| Jan 28, 2014 20:53 | 0.00 ppm |
| Dec 16, 2013 19:29 | 0.00 ppm |
| Dec 4, 2013 18:35 | 0.00 ppm |
| Nov 25, 2013 19:41 | 0.00 ppm |
| Nov 20, 2013 19:46 | 0.00 ppm |
| Nov 11, 2013 18:31 | 0.00 ppm |
| Nov 5, 2013 18:30 | 0.00 ppm |
| Oct 29, 2013 18:18 | 0.00 ppm |
| Oct 25, 2013 20:00 | 0.01 ppm |
| Oct 22, 2013 20:12 | 0.00 ppm |
| Oct 16, 2013 19:59 | 0.00 ppm |
| Oct 13, 2013 10:17 | 0.01 ppm |
| Oct 8, 2013 19:09 | 0.01 ppm |