| Sold | Grade | Monthly Average |
| Mar 2022 | 5.0 | $23.00 |
| Dec 2021 | 4.5 | $20.00 |
| May 2025 | 4.0 | $68.00 |
| May 2022 | 4.0 | $21.85 |
| May 2023 | 3.5 | $12.50 |
| Aug 2014 | 3.5 | $22.75 |
| Jul 2019 | 3.0 | $22.50 |
| Jul 2021 | 2.5 | $13.75 |
| Mar 2022 | 2.0 | $14.00 |
| Nov 2018 | 2.0 | $16.00 |
| Jan 2010 | 2.0 | $14.25 |
| Feb 2023 | 1.0 | $5.70 |