| Sold | Grade | Monthly Average |
| Jul 2026 | 2.0 | $14.50 |
| Mar 2021 | 4.0 | $32.00 |
| Jul 2025 | 3.5 | $23.50 |
| Aug 2020 | 2.5 | $12.00 |
| Mar 2020 | 2.5 | $12.00 |
| Oct 2011 | 2.5 | $15.50 |
| Nov 2024 | 2.0 | $10.00 |
| Jun 2023 | 2.0 | $10.00 |
| Jul 2021 | 2.0 | $10.00 |
| Feb 2021 | 2.0 | $10.00 |
| Jun 2015 | 2.0 | $10.00 |
| Dec 2023 | 1.5 | $7.70 |
| Aug 2010 | 1.0 | $5.00 |