| Sold | Grade | Monthly Average |
| Oct 2021 | 8.0 | $8.90 |
| Jun 2020 | 6.5 | $6.49 |
| Oct 2024 | 6.0 | $5.40 |
| Jun 2024 | 6.0 | $6.40 |
| Jul 2023 | 6.0 | $6.00 |
| Apr 2025 | 5.0 | $4.49 |
| Jan 2022 | 5.0 | $5.90 |
| May 2025 | 4.0 | $3.60 |
| Nov 2024 | 4.0 | $3.60 |
| Sep 2024 | 4.0 | $3.80 |
| Jan 2022 | 4.0 | $4.00 |
| Sep 2021 | 4.0 | $4.00 |
| Jun 2020 | 4.0 | $4.40 |
| Feb 2019 | 2.0 | $2.00 |