| Sold | Grade | Monthly Average |
| Oct 2018 | 9.4 | $4.94 |
| Apr 2018 | 9.4 | $4.00 |
| Mar 2018 | 9.4 | $4.00 |
| Feb 2018 | 9.4 | $4.00 |
| Jan 2018 | 9.4 | $4.00 |
| Nov 2017 | 9.4 | $4.00 |
| Oct 2017 | 9.4 | $3.99 |
| Sep 2017 | 9.4 | $3.99 |
| Aug 2017 | 9.4 | $3.99 |
| Jul 2017 | 9.4 | $4.29 |
| May 2017 | 9.4 | $3.99 |
| Apr 2017 | 9.4 | $4.00 |
| Jun 2021 | 8.0 | $2.40 |
| Nov 2019 | 8.0 | $5.44 |
| Aug 2019 | 8.0 | $6.00 |
| May 2023 | 6.0 | $2.50 |