| Sold | Grade | Monthly Average |
| Jul 2020 | 9.4 | $30.00 |
| Jun 2019 | 9.4 | $85.50 |
| Mar 2017 | 9.4 | $60.00 |
| Jun 2016 | 9.4 | $149.00 |
| Jul 2020 | 9.2 | $25.00 |
| Aug 2019 | 9.2 | $65.00 |
| Jun 2017 | 9.2 | $47.50 |
| Jul 2020 | 9.0 | $23.00 |
| Nov 2018 | 9.0 | $67.00 |
| Nov 2017 | 9.0 | $51.00 |
| Jan 2021 | 6.0 | $15.00 |
| Jan 2021 | 5.0 | $12.50 |