| Sold | Grade | Monthly Average |
| Sep 2023 | 9.4 | $1.00 |
| Aug 2023 | 9.4 | $8.90 |
| Jul 2021 | 9.4 | $14.25 |
| Jul 2020 | 9.4 | $14.25 |
| Jul 2018 | 9.4 | $14.25 |
| Feb 2024 | 9.2 | $6.30 |
| Sep 2023 | 9.2 | $1.00 |
| Feb 2022 | 9.2 | $10.25 |
| Jul 2021 | 9.2 | $9.23 |
| Mar 2017 | 9.2 | $22.50 |
| Nov 2014 | 9.2 | $48.00 |
| Apr 2022 | 9.0 | $9.30 |
| Aug 2021 | 9.0 | $9.30 |
| Jun 2021 | 9.0 | $10.50 |
| Jan 2021 | 9.0 | $8.37 |
| Dec 2020 | 8.5 | $7.60 |
| Sep 2020 | 8.5 | $6.80 |
| Nov 2022 | 6.0 | $4.80 |