| Sold | Grade | Monthly Average |
| Jan 2020 | 8.0 | $28.00 |
| Jan 2024 | 7.0 | $160.00 |
| Jan 2021 | 7.0 | $42.00 |
| Feb 2016 | 7.0 | $10.50 |
| Jul 2022 | 6.5 | $135.00 |
| Apr 2018 | 6.0 | $9.00 |
| Nov 2016 | 5.0 | $7.49 |
| Jun 2015 | 5.0 | $8.10 |
| Jul 2014 | 5.0 | $7.49 |
| Feb 2013 | 5.0 | $8.25 |
| Apr 2014 | 4.5 | $6.70 |
| Jan 2023 | 4.0 | $24.00 |
| Dec 2019 | 4.0 | $14.00 |