| Date | Value |
|---|---|
| Apr 8, 2015 07:45 | 0.00 ppm |
| Nov 10, 2014 10:49 | 0.00 ppm |
| Aug 1, 2014 22:11 | 0.00 ppm |
| May 21, 2014 08:43 | 0.00 ppm |
| Mar 26, 2014 11:55 | 0.00 ppm |
| Feb 27, 2014 12:35 | 0.00 ppm |
| Jan 23, 2014 20:19 | 0.00 ppm |
| Dec 20, 2013 08:19 | 0.00 ppm |
| Dec 17, 2013 10:45 | 0.00 ppm |
| Nov 4, 2013 15:28 | 0.00 ppm |
| Oct 26, 2013 19:06 | 0.00 ppm |
| Oct 24, 2013 23:50 | 0.00 ppm |