| Sold | Grade | Monthly Average |
| Feb 2013 | 9.2 | $5.00 |
| Nov 2012 | 9.2 | $10.00 |
| Aug 2012 | 9.2 | $11.30 |
| Jun 2012 | 9.2 | $11.30 |
| Sep 2012 | 9.0 | $10.20 |
| Jun 2012 | 9.0 | $10.20 |
| Apr 2011 | 9.0 | $8.55 |
| May 2013 | 8.5 | $4.20 |
| Dec 2013 | 8.0 | $3.40 |
| May 2013 | 8.0 | $4.00 |
| Nov 2011 | 8.0 | $8.50 |
| Jan 2018 | 7.5 | $7.49 |
| May 2012 | 7.5 | $7.49 |
| Oct 2024 | 6.0 | $6.00 |
| Jan 2021 | 6.0 | $6.00 |
| Oct 2016 | 6.0 | $4.49 |
| Sep 2022 | 4.0 | $4.00 |
| Jun 2016 | 4.0 | $3.00 |