| Sold | Grade | Monthly Average |
| Dec 2025 | 4.0 | $23.40 |
| Jan 2023 | 4.0 | $29.00 |
| Nov 2024 | 3.5 | $7.22 |
| Oct 2022 | 3.0 | $7.90 |
| Dec 2020 | 3.0 | $6.70 |
| Jul 2020 | 2.5 | $7.60 |
| Jul 2024 | 2.0 | $4.80 |
| Nov 2021 | 2.0 | $4.80 |
| Sep 2019 | 2.0 | $10.50 |
| Sep 2018 | 2.0 | $18.00 |
| Jul 2021 | 1.5 | $3.30 |
| Oct 2019 | 1.5 | $4.49 |
| Mar 2024 | 0.5 | $2.50 |