| Sold | Grade | Monthly Average |
| Oct 2018 | 9.4 | $3.70 |
| Jun 2018 | 9.4 | $3.70 |
| May 2018 | 9.4 | $3.70 |
| Mar 2018 | 9.4 | $3.30 |
| Feb 2018 | 9.4 | $3.30 |
| Nov 2017 | 9.4 | $4.00 |
| Jul 2017 | 9.4 | $3.99 |
| May 2017 | 9.4 | $3.99 |
| Feb 2017 | 9.4 | $3.99 |
| Jan 2017 | 9.4 | $3.99 |
| Dec 2016 | 9.4 | $4.00 |
| Sep 2021 | 8.0 | $7.10 |
| Aug 2023 | 6.0 | $6.00 |