| Sold | Grade | Monthly Average |
| Sep 2021 | 8.0 | $2.00 |
| Jun 2020 | 8.0 | $2.00 |
| Jan 2019 | 8.0 | $1.70 |
| May 2016 | 8.0 | $1.35 |
| Apr 2016 | 8.0 | $1.35 |
| Oct 2015 | 8.0 | $1.35 |
| Feb 2024 | 6.0 | $2.50 |
| Nov 2023 | 6.0 | $2.50 |
| Jan 2023 | 6.0 | $2.50 |
| May 2022 | 6.0 | $2.00 |
| Feb 2022 | 6.0 | $2.40 |
| Jul 2019 | 6.0 | $1.70 |
| Apr 2019 | 6.0 | $1.70 |