| Sold | Grade | Monthly Average |
| Jan 2026 | 4.0 | $19.95 |
| Oct 2019 | 6.5 | $36.00 |
| Jul 2025 | 3.5 | $16.75 |
| Mar 2012 | 3.5 | $19.25 |
| Apr 2024 | 3.0 | $14.00 |
| Nov 2024 | 2.5 | $16.00 |
| Aug 2023 | 2.0 | $10.00 |
| Jun 2022 | 2.0 | $10.00 |
| Mar 2018 | 2.0 | $11.00 |
| Nov 2021 | 1.8 | $7.20 |
| Oct 2020 | 1.8 | $8.00 |
| Apr 2018 | 1.8 | $8.80 |
| May 2015 | 1.8 | $9.60 |
| May 2012 | 1.0 | $5.05 |