| Sold | Grade | Monthly Average |
| Feb 2016 | 9.4 | $8.50 |
| Dec 2015 | 9.4 | $5.99 |
| Sep 2016 | 8.0 | $5.20 |
| Feb 2016 | 8.0 | $5.25 |
| Jan 2016 | 8.0 | $5.25 |
| Aug 2022 | 6.0 | $6.00 |
| Jul 2019 | 6.0 | $5.25 |
| Jun 2016 | 6.0 | $4.30 |
| May 2018 | 4.0 | $3.50 |
| Jan 2017 | 4.0 | $4.40 |
| Jul 2016 | 4.0 | $2.85 |
| Jul 2025 | 2.0 | $2.65 |