| Sold | Grade | Monthly Average |
| Apr 2026 | 1.8 | $24.50 |
| Nov 2024 | 3.5 | $15.00 |
| Nov 2019 | 3.5 | $29.95 |
| Aug 2021 | 3.0 | $18.50 |
| Apr 2021 | 2.5 | $12.83 |
| Oct 2022 | 2.0 | $14.00 |
| Dec 2018 | 2.0 | $19.00 |
| Sep 2018 | 2.0 | $25.00 |
| Nov 2016 | 2.0 | $13.50 |
| Dec 2023 | 1.8 | $9.10 |
| Sep 2014 | 1.8 | $12.25 |
| Dec 2023 | 1.5 | $7.99 |
| Dec 2011 | 1.5 | $11.75 |
| Nov 2023 | 1.0 | $5.13 |
| Dec 2021 | 1.0 | $5.42 |
| Oct 2021 | 1.0 | $5.70 |
| Oct 2014 | 0.1 | $1.60 |