| Sold | Grade | Monthly Average |
| Jun 2020 | 8.0 | $22.80 |
| May 2025 | 7.5 | $33.00 |
| Jul 2017 | 6.5 | $7.00 |
| Jun 2012 | 6.5 | $12.25 |
| Aug 2022 | 6.0 | $16.00 |
| Jun 2021 | 6.0 | $18.50 |
| Apr 2021 | 6.0 | $15.20 |
| Apr 2025 | 5.5 | $20.00 |
| Jun 2022 | 5.0 | $15.50 |
| Feb 2020 | 5.0 | $6.40 |
| Sep 2012 | 4.5 | $9.75 |
| Jun 2024 | 4.0 | $9.98 |