| Sold | Grade | Monthly Average |
| Nov 2017 | 7.5 | $5.47 |
| Jun 2019 | 6.5 | $7.75 |
| May 2022 | 6.0 | $6.00 |
| May 2012 | 6.0 | $6.00 |
| Jan 2019 | 4.5 | $4.40 |
| Nov 2024 | 4.0 | $4.00 |
| Aug 2022 | 4.0 | $4.00 |
| Mar 2020 | 4.0 | $4.00 |
| Oct 2019 | 3.5 | $3.20 |
| Oct 2020 | 3.0 | $3.10 |
| Feb 2012 | 3.0 | $3.00 |
| Jun 2021 | 2.0 | $2.00 |
| May 2015 | 1.8 | $2.00 |