| Sold | Grade | Monthly Average |
| Oct 2010 | 9.4 | $3.30 |
| Sep 2010 | 9.4 | $3.00 |
| Mar 2020 | 8.0 | $7.60 |
| Nov 2010 | 8.0 | $2.60 |
| Mar 2023 | 6.5 | $6.49 |
| Jun 2025 | 6.0 | $25.00 |
| May 2025 | 6.0 | $24.00 |
| Sep 2023 | 6.0 | $42.00 |
| Aug 2023 | 6.0 | $50.00 |
| Aug 2022 | 6.0 | $6.00 |
| Jun 2022 | 6.0 | $6.00 |
| Feb 2022 | 6.0 | $6.00 |
| Sep 2021 | 6.0 | $6.00 |
| Aug 2020 | 6.0 | $5.70 |
| May 2020 | 6.0 | $5.70 |
| May 2019 | 6.0 | $62.00 |
| Jan 2019 | 6.0 | $27.00 |
| Sep 2024 | 4.0 | $45.00 |
| Jun 2023 | 4.0 | $4.00 |