| Sold | Grade | Monthly Average |
| Mar 2026 | 3.0 | $11.50 |
| Sep 2022 | 7.5 | $31.00 |
| Feb 2017 | 6.0 | $14.70 |
| Aug 2014 | 6.0 | $20.50 |
| Apr 2019 | 5.5 | $18.75 |
| Mar 2021 | 5.0 | $25.00 |
| Jul 2023 | 4.0 | $24.00 |
| May 2021 | 4.0 | $27.00 |
| Nov 2023 | 2.5 | $12.00 |
| May 2023 | 2.0 | $13.25 |
| Jan 2012 | 2.0 | $7.80 |
| Apr 2018 | 1.5 | $5.30 |