| Sold | Grade | Monthly Average |
| Jan 2016 | 9.4 | $18.00 |
| Apr 2015 | 9.4 | $15.00 |
| Jan 2016 | 9.2 | $15.00 |
| Sep 2016 | 8.5 | $3.40 |
| Aug 2024 | 8.0 | $27.00 |
| Aug 2021 | 8.0 | $2.40 |
| Dec 2020 | 8.0 | $2.60 |
| Oct 2019 | 8.0 | $2.40 |
| Mar 2019 | 8.0 | $2.40 |
| Oct 2015 | 6.5 | $9.70 |
| Nov 2021 | 6.0 | $2.00 |
| Oct 2021 | 6.0 | $2.00 |