| Sold | Grade | Monthly Average |
| Jul 2020 | 9.4 | $5.25 |
| May 2016 | 9.4 | $3.99 |
| Apr 2016 | 9.4 | $3.99 |
| Mar 2016 | 9.4 | $3.99 |
| Feb 2016 | 9.4 | $3.99 |
| Jan 2016 | 9.4 | $4.30 |
| Dec 2015 | 9.4 | $3.99 |
| Dec 2015 | 9.4 | $3.99 |
| Jul 2020 | 8.0 | $3.60 |
| Oct 2019 | 8.0 | $4.00 |
| Apr 2018 | 8.0 | $2.10 |
| Jun 2016 | 8.0 | $3.10 |
| May 2016 | 6.0 | $2.40 |
| Mar 2016 | 6.0 | $2.85 |