| Sold | Grade | Monthly Average |
| Dec 2014 | 9.4 | $18.00 |
| Oct 2014 | 9.0 | $10.50 |
| Jul 2011 | 8.5 | $12.75 |
| Jun 2024 | 8.0 | $27.00 |
| Jun 2022 | 8.0 | $60.00 |
| Sep 2023 | 7.0 | $47.95 |
| Jun 2021 | 6.5 | $36.00 |
| May 2021 | 6.5 | $37.50 |
| Oct 2025 | 6.0 | $9.00 |
| Jun 2021 | 6.0 | $30.50 |
| May 2021 | 6.0 | $29.00 |
| May 2017 | 6.0 | $12.50 |
| Jun 2021 | 5.5 | $31.00 |
| Jul 2021 | 5.0 | $25.00 |
| Jun 2021 | 5.0 | $21.00 |