| Sold | Grade | Monthly Average |
| Jul 2024 | 1.8 | $9.60 |
| Mar 2010 | 6.0 | $30.00 |
| Sep 2021 | 4.0 | $24.00 |
| Feb 2021 | 4.0 | $17.50 |
| Mar 2012 | 4.0 | $22.40 |
| Sep 2014 | 3.5 | $17.10 |
| Jun 2011 | 3.0 | $14.00 |
| Mar 2016 | 2.5 | $14.25 |
| Feb 2019 | 2.0 | $12.00 |
| May 2023 | 1.8 | $9.60 |
| Oct 2018 | 1.8 | $9.60 |
| Oct 2022 | 1.0 | $6.00 |
| Jul 2014 | 1.0 | $6.00 |