| Date | Value |
|---|---|
| Feb 1, 2014 23:45 | 0.00 ppm |
| Jan 28, 2014 05:50 | 0.00 ppm |
| Jan 22, 2014 04:45 | 0.00 ppm |
| Jan 17, 2014 18:56 | 0.00 ppm |
| Jan 10, 2014 01:55 | 0.00 ppm |
| Dec 23, 2013 04:03 | 0.00 ppm |
| Dec 20, 2013 18:31 | 0.00 ppm |
| Dec 14, 2013 01:13 | 0.00 ppm |
| Dec 2, 2013 05:59 | 0.00 ppm |