| Sold | Grade | Monthly Average |
| May 2015 | 9.4 | $4.30 |
| Feb 2015 | 9.4 | $3.99 |
| Jan 2015 | 9.4 | $3.99 |
| May 2019 | 8.0 | $4.00 |
| Aug 2018 | 8.0 | $4.40 |
| Nov 2017 | 8.0 | $3.40 |
| Aug 2017 | 8.0 | $3.80 |
| Nov 2016 | 8.0 | $4.25 |
| Feb 2016 | 8.0 | $2.40 |
| Aug 2015 | 8.0 | $3.35 |
| Jun 2025 | 7.5 | $7.49 |
| Feb 2024 | 6.0 | $6.00 |
| Jun 2015 | 6.0 | $2.40 |
| Feb 2025 | 2.0 | $2.50 |