| Sold | Grade | Monthly Average |
| Jan 2023 | 8.0 | $3.20 |
| Feb 2022 | 8.0 | $3.20 |
| May 2021 | 8.0 | $3.60 |
| Dec 2020 | 8.0 | $3.20 |
| Jul 2020 | 8.0 | $3.20 |
| Sep 2019 | 8.0 | $3.20 |
| Feb 2018 | 8.0 | $2.65 |
| Jan 2018 | 8.0 | $2.85 |
| Mar 2017 | 8.0 | $3.40 |
| Jan 2013 | 8.0 | $0.90 |
| Jul 2023 | 6.0 | $2.50 |
| Mar 2015 | 6.0 | $2.40 |
| Mar 2024 | 4.0 | $3.00 |