| Sold | Grade | Monthly Average |
| Mar 2019 | 6.5 | $33.00 |
| Jul 2016 | 6.0 | $36.10 |
| Feb 2016 | 6.0 | $16.50 |
| Feb 2022 | 5.0 | $38.00 |
| Sep 2020 | 4.5 | $17.81 |
| Aug 2022 | 4.0 | $24.00 |
| Mar 2021 | 4.0 | $17.00 |
| Jan 2013 | 4.0 | $10.00 |
| Oct 2023 | 3.5 | $12.50 |
| May 2022 | 2.5 | $10.93 |
| Dec 2022 | 2.0 | $9.70 |
| Dec 2020 | 2.0 | $8.49 |
| Sep 2020 | 2.0 | $8.49 |
| Apr 2018 | 2.0 | $5.49 |
| Mar 2013 | 2.0 | $5.49 |
| Nov 2009 | 2.0 | $2.49 |