| Sold | Grade | Monthly Average |
| Jan 2019 | 6.0 | $9.00 |
| Dec 2016 | 6.0 | $9.00 |
| May 2018 | 4.5 | $7.25 |
| Jan 2022 | 4.0 | $6.00 |
| Aug 2017 | 4.0 | $5.40 |
| Jan 2018 | 3.5 | $5.25 |
| Jan 2019 | 3.0 | $5.00 |
| Dec 2013 | 3.0 | $4.85 |
| Mar 2023 | 2.0 | $3.30 |
| May 2019 | 2.0 | $3.14 |
| Oct 2010 | 2.0 | $3.30 |
| Jul 2010 | 2.0 | $3.30 |
| Jul 2025 | 1.8 | $3.00 |
| Jan 2024 | 1.5 | $2.49 |