| Sold | Grade | Monthly Average |
| Jul 2020 | 9.4 | $4.38 |
| Jun 2020 | 9.4 | $4.07 |
| May 2020 | 9.4 | $4.00 |
| Nov 2019 | 9.4 | $3.99 |
| Oct 2019 | 9.4 | $3.99 |
| Sep 2019 | 9.4 | $3.99 |
| Aug 2019 | 9.4 | $3.99 |
| Jun 2020 | 8.0 | $3.50 |
| May 2020 | 8.0 | $2.88 |
| Mar 2020 | 8.0 | $3.10 |
| Dec 2019 | 8.0 | $3.25 |
| Oct 2019 | 8.0 | $2.79 |
| Dec 2021 | 6.0 | $2.70 |