| Sold | Grade | Monthly Average |
| Jun 2020 | 9.4 | $4.00 |
| May 2020 | 9.4 | $4.40 |
| Sep 2016 | 9.4 | $4.70 |
| Aug 2016 | 9.4 | $4.70 |
| May 2016 | 9.4 | $4.70 |
| Apr 2016 | 9.4 | $4.30 |
| Jan 2016 | 9.4 | $4.50 |
| Dec 2015 | 9.4 | $4.40 |
| Aug 2015 | 9.4 | $4.15 |
| Jul 2015 | 9.4 | $3.99 |
| Jun 2015 | 9.4 | $4.09 |
| Apr 2015 | 9.4 | $3.99 |
| Mar 2015 | 9.4 | $3.99 |
| May 2020 | 8.0 | $3.20 |
| Jun 2019 | 8.0 | $3.50 |
| Oct 2017 | 8.0 | $5.25 |
| Oct 2018 | 6.0 | $1.95 |
| Mar 2018 | 6.0 | $1.95 |