| Sold | Grade | Monthly Average |
| Jul 2019 | 9.4 | $5.00 |
| Nov 2017 | 9.4 | $3.99 |
| Oct 2017 | 9.4 | $3.99 |
| Sep 2017 | 9.4 | $3.99 |
| Aug 2017 | 9.4 | $3.99 |
| Jun 2019 | 8.0 | $4.40 |
| May 2019 | 8.0 | $4.40 |
| Mar 2019 | 8.0 | $4.00 |
| Jan 2019 | 8.0 | $4.20 |
| Sep 2017 | 8.0 | $3.17 |
| Jul 2019 | 6.0 | $2.70 |
| Apr 2019 | 6.0 | $3.30 |
| Feb 2019 | 6.0 | $3.00 |
| Jan 2019 | 6.0 | $3.00 |
| Sep 2018 | 6.0 | $3.90 |
| Sep 2017 | 6.0 | $2.39 |
| Jan 2019 | 4.0 | $1.90 |