| Sold | Grade | Monthly Average |
| Apr 2026 | 4.5 | $6.10 |
| Mar 2023 | 6.5 | $10.50 |
| Apr 2022 | 6.5 | $13.50 |
| May 2024 | 6.0 | $12.00 |
| Jan 2023 | 6.0 | $11.50 |
| Jul 2024 | 4.5 | $6.10 |
| Aug 2025 | 4.0 | $6.80 |
| Jan 2025 | 4.0 | $6.80 |
| Nov 2023 | 4.0 | $5.60 |
| Jul 2023 | 4.0 | $3.52 |
| Apr 2023 | 4.0 | $3.33 |
| Feb 2023 | 4.0 | $3.70 |
| Dec 2021 | 4.0 | $3.70 |
| Mar 2021 | 4.0 | $5.60 |
| Sep 2020 | 4.0 | $5.60 |
| Feb 2014 | 3.0 | $2.40 |
| Jan 2014 | 3.0 | $2.20 |
| Mar 2013 | 3.0 | $2.20 |
| Dec 2018 | 2.0 | $3.70 |
| Jun 2013 | 2.0 | $1.60 |