| Sold | Grade | Monthly Average |
| Jul 2026 | 8.0 | $2.65 |
| Feb 2026 | 6.0 | $5.40 |
| Dec 2025 | 8.0 | $4.05 |
| Jun 2013 | 6.5 | $1.49 |
| Jul 2011 | 6.5 | $3.49 |
| Mar 2015 | 6.0 | $2.90 |
| Sep 2014 | 6.0 | $1.20 |
| Sep 2014 | 5.5 | $1.10 |
| May 2024 | 5.0 | $2.80 |
| Mar 2015 | 4.5 | $1.10 |
| May 2025 | 4.0 | $2.80 |
| Jan 2024 | 4.0 | $2.38 |
| Jul 2021 | 4.0 | $2.40 |
| Oct 2019 | 4.0 | $2.40 |
| Sep 2019 | 3.5 | $1.70 |