| Sold | Grade | Monthly Average |
| Jan 2026 | 5.5 | $9.00 |
| Jun 2023 | 9.2 | $61.00 |
| Mar 2024 | 8.0 | $26.00 |
| Apr 2023 | 8.0 | $22.00 |
| Feb 2014 | 8.0 | $69.00 |
| Jan 2024 | 7.5 | $49.00 |
| Mar 2023 | 6.5 | $19.25 |
| Jun 2022 | 6.5 | $17.50 |
| Jun 2025 | 6.0 | $12.00 |
| Dec 2024 | 6.0 | $18.00 |
| Mar 2023 | 6.0 | $19.50 |
| Feb 2023 | 6.0 | $16.00 |
| Mar 2021 | 6.0 | $45.00 |
| May 2016 | 6.0 | $22.00 |
| Mar 2013 | 6.0 | $53.00 |
| Jan 2023 | 5.5 | $20.00 |
| Jul 2011 | 5.5 | $44.00 |
| Jan 2024 | 5.0 | $36.00 |
| Jan 2016 | 1.8 | $36.00 |