| Sold | Grade | Monthly Average |
| Jan 2026 | 1.8 | $31.25 |
| Jun 2019 | 4.5 | $102.00 |
| Jun 2020 | 3.5 | $86.00 |
| Feb 2025 | 3.0 | $65.00 |
| Oct 2023 | 3.0 | $45.00 |
| Jun 2020 | 3.0 | $55.01 |
| Mar 2019 | 3.0 | $75.00 |
| Apr 2021 | 2.5 | $31.00 |
| Apr 2019 | 1.8 | $22.00 |
| Aug 2013 | 1.5 | $35.00 |
| Feb 2014 | 0.5 | $13.25 |
| Apr 2013 | 0.1 | $4.99 |