| Sold | Grade | Monthly Average |
| Mar 2026 | 4.0 | $2.60 |
| Nov 2012 | 8.0 | $13.50 |
| May 2021 | 5.5 | $8.10 |
| Jul 2019 | 5.5 | $8.10 |
| Apr 2014 | 5.0 | $4.50 |
| Oct 2024 | 4.5 | $3.99 |
| Mar 2018 | 4.5 | $3.60 |
| Jan 2018 | 4.5 | $3.30 |
| Jul 2025 | 4.0 | $3.42 |
| Mar 2025 | 4.0 | $3.60 |
| Nov 2023 | 4.0 | $3.60 |
| Oct 2022 | 4.0 | $3.60 |
| Jan 2021 | 4.0 | $6.00 |
| May 2018 | 4.0 | $3.00 |
| Aug 2018 | 3.0 | $2.10 |
| Jun 2018 | 3.0 | $2.10 |
| Dec 2019 | 2.0 | $2.00 |
| Jun 2014 | 1.8 | $1.30 |