| Sold | Grade | Monthly Average |
| Apr 2020 | 9.4 | $5.50 |
| May 2016 | 9.4 | $2.00 |
| Nov 2013 | 9.4 | $13.00 |
| Oct 2013 | 9.4 | $13.00 |
| May 2016 | 9.2 | $2.00 |
| Mar 2016 | 9.2 | $11.00 |
| Feb 2016 | 9.0 | $9.90 |
| Aug 2014 | 9.0 | $9.90 |
| Mar 2021 | 8.0 | $4.00 |
| Feb 2021 | 8.0 | $4.00 |
| Jul 2019 | 8.0 | $4.00 |
| Sep 2017 | 8.0 | $2.16 |
| Oct 2016 | 8.0 | $2.34 |
| Apr 2016 | 8.0 | $1.60 |
| May 2021 | 6.0 | $2.70 |
| Aug 2020 | 6.0 | $3.30 |