| Sold | Grade | Monthly Average |
| May 2026 | 2.5 | $6.99 |
| May 2014 | 6.0 | $17.00 |
| Oct 2018 | 4.5 | $11.50 |
| Feb 2018 | 4.5 | $11.50 |
| Sep 2016 | 4.5 | $9.98 |
| Mar 2023 | 4.0 | $10.25 |
| Oct 2014 | 4.0 | $10.50 |
| Jan 2012 | 4.0 | $9.60 |
| Nov 2019 | 3.5 | $7.47 |
| Aug 2017 | 3.5 | $5.50 |
| Apr 2016 | 3.5 | $12.00 |
| Jun 2025 | 3.0 | $6.00 |
| Oct 2017 | 2.5 | $3.06 |