| Sold | Grade | Monthly Average |
| Jan 2012 | 8.0 | $17.90 |
| Mar 2021 | 7.0 | $20.00 |
| Nov 2015 | 7.0 | $17.50 |
| Mar 2011 | 7.0 | $12.25 |
| Jan 2023 | 6.5 | $23.00 |
| May 2015 | 6.5 | $17.55 |
| Jul 2014 | 6.5 | $14.63 |
| Sep 2011 | 6.5 | $10.69 |
| Dec 2018 | 6.0 | $15.00 |
| Dec 2016 | 6.0 | $15.00 |
| Nov 2019 | 5.5 | $12.38 |
| Apr 2012 | 5.5 | $13.06 |
| Mar 2025 | 5.0 | $17.50 |
| Nov 2020 | 5.0 | $12.50 |
| Oct 2011 | 4.5 | $6.70 |
| Jul 2011 | 4.5 | $6.70 |
| Apr 2025 | 4.0 | $14.00 |
| Jan 2023 | 4.0 | $8.40 |
| May 2011 | 3.0 | $3.00 |