| Sold | Grade | Monthly Average |
| Apr 2026 | 4.0 | $3.20 |
| Jun 2021 | 7.5 | $4.80 |
| Oct 2022 | 6.0 | $5.00 |
| Sep 2022 | 6.0 | $5.00 |
| Oct 2024 | 5.0 | $3.80 |
| Aug 2025 | 4.5 | $3.32 |
| Dec 2025 | 4.0 | $2.88 |
| Aug 2022 | 4.0 | $3.80 |
| Jul 2021 | 4.0 | $3.20 |
| Sep 2020 | 4.0 | $4.56 |
| Aug 2020 | 4.0 | $5.25 |
| Sep 2021 | 2.5 | $2.00 |
| Jan 2020 | 2.0 | $1.00 |
| Apr 2016 | 2.0 | $1.35 |
| Feb 2021 | 1.8 | $1.00 |
| Apr 2018 | 1.8 | $1.70 |