| Sold | Grade | Monthly Average |
| Dec 2020 | 8.5 | $8.07 |
| Dec 2021 | 8.0 | $8.00 |
| Sep 2021 | 8.0 | $8.00 |
| Sep 2015 | 8.0 | $3.20 |
| Jan 2014 | 8.0 | $3.20 |
| Jan 2022 | 6.5 | $6.49 |
| Jul 2021 | 6.5 | $6.49 |
| Aug 2019 | 6.0 | $6.00 |
| Feb 2019 | 6.0 | $6.00 |
| Mar 2018 | 6.0 | $3.60 |
| Apr 2017 | 6.0 | $3.60 |
| Sep 2015 | 6.0 | $2.40 |
| Jul 2015 | 6.0 | $2.60 |
| Mar 2021 | 4.0 | $4.00 |
| May 2017 | 4.0 | $2.40 |
| Oct 2013 | 4.0 | $1.60 |