| Sold | Grade | Monthly Average |
| Feb 2024 | 1.5 | $9.00 |
| Mar 2019 | 6.0 | $22.00 |
| Feb 2017 | 6.0 | $20.90 |
| Aug 2021 | 5.5 | $36.00 |
| Oct 2012 | 5.5 | $11.75 |
| Jun 2016 | 5.0 | $17.25 |
| Feb 2023 | 4.0 | $33.00 |
| Jul 2022 | 4.0 | $26.50 |
| Oct 2013 | 4.0 | $8.80 |
| Jun 2023 | 3.5 | $23.00 |
| Jan 2020 | 2.5 | $17.50 |
| Oct 2019 | 2.5 | $9.49 |
| May 2022 | 2.0 | $14.00 |
| Apr 2015 | 1.0 | $4.60 |