| Sold | Grade | Monthly Average |
| Sep 2025 | 5.0 | $11.88 |
| Sep 2025 | 4.0 | $13.50 |
| Aug 2023 | 8.0 | $56.00 |
| May 2025 | 6.5 | $33.00 |
| Oct 2017 | 6.0 | $20.00 |
| May 2025 | 5.5 | $17.50 |
| May 2025 | 5.0 | $12.50 |
| Oct 2018 | 5.0 | $9.60 |
| Aug 2012 | 4.5 | $9.95 |
| May 2025 | 4.0 | $10.50 |
| Nov 2021 | 4.0 | $6.40 |
| Jun 2017 | 3.0 | $6.10 |
| Mar 2017 | 3.0 | $9.50 |
| May 2011 | 3.0 | $6.10 |
| Mar 2025 | 2.5 | $3.80 |
| Mar 2020 | 2.0 | $4.18 |
| Jan 2012 | 2.0 | $4.90 |
| Mar 2020 | 1.8 | $3.61 |
| May 2010 | 0.5 | $1.49 |