| Sold | Grade | Monthly Average |
| May 2026 | 9.4 | $2.70 |
| Aug 2026 | 6.0 | $2.65 |
| Mar 2024 | 9.4 | $3.00 |
| Jan 2022 | 9.4 | $1.90 |
| Dec 2021 | 9.4 | $2.00 |
| Oct 2021 | 9.4 | $2.00 |
| Jul 2021 | 9.4 | $2.00 |
| Jun 2020 | 9.4 | $2.00 |
| Nov 2019 | 9.4 | $2.30 |
| May 2018 | 9.4 | $1.00 |
| Oct 2021 | 9.0 | $23.00 |
| Nov 2022 | 8.0 | $2.00 |
| Oct 2021 | 8.0 | $2.10 |
| Aug 2020 | 8.0 | $2.00 |
| May 2020 | 8.0 | $2.00 |
| Jun 2024 | 6.0 | $2.50 |
| May 2022 | 6.0 | $1.80 |
| Oct 2021 | 6.0 | $2.00 |
| Oct 2019 | 6.0 | $2.00 |
| Feb 2019 | 6.0 | $2.70 |