| Sold | Grade | Monthly Average |
| Jun 2011 | 9.8 | $9.00 |
| Feb 2011 | 9.8 | $9.00 |
| Oct 2019 | 9.4 | $3.00 |
| Aug 2017 | 9.4 | $1.70 |
| Apr 2014 | 9.4 | $4.70 |
| Apr 2010 | 9.2 | $25.00 |
| Dec 2011 | 8.5 | $4.20 |
| Oct 2025 | 8.0 | $20.00 |
| Feb 2024 | 8.0 | $2.50 |
| Jun 2016 | 8.0 | $2.99 |
| Dec 2024 | 6.0 | $2.50 |
| Jul 2019 | 4.0 | $1.70 |