| Sold | Grade | Monthly Average |
| Jun 2026 | 3.0 | $37.00 |
| Jul 2026 | 1.0 | $9.50 |
| May 2026 | 0.5 | $8.00 |
| Jun 2022 | 4.5 | $27.00 |
| Mar 2016 | 3.5 | $12.67 |
| Apr 2022 | 3.0 | $17.00 |
| Jun 2015 | 2.5 | $19.00 |
| Jun 2023 | 2.0 | $12.00 |
| Apr 2011 | 2.0 | $19.00 |
| Jan 2011 | 2.0 | $19.00 |
| Apr 2018 | 1.8 | $22.00 |
| Dec 2016 | 0.5 | $5.00 |