| Sold | Grade | Monthly Average |
| Apr 2026 | 3.0 | $3.10 |
| Dec 2017 | 7.0 | $16.45 |
| Jul 2013 | 7.0 | $18.00 |
| Sep 2022 | 6.0 | $9.30 |
| Aug 2013 | 5.5 | $7.00 |
| Jul 2019 | 5.0 | $10.75 |
| Nov 2016 | 4.5 | $12.00 |
| Oct 2025 | 4.0 | $6.70 |
| Sep 2022 | 4.0 | $6.70 |
| Mar 2021 | 4.0 | $9.00 |
| Aug 2016 | 4.0 | $6.60 |
| Dec 2017 | 3.5 | $9.00 |
| Feb 2024 | 3.0 | $3.10 |
| Mar 2021 | 3.0 | $5.85 |
| Aug 2018 | 3.0 | $7.80 |
| Nov 2017 | 3.0 | $5.04 |
| Dec 2019 | 2.5 | $4.00 |
| Dec 2015 | 2.5 | $5.30 |
| Oct 2020 | 2.0 | $3.30 |