| Sold | Grade | Monthly Average |
| Dec 2023 | 9.0 | $8.50 |
| Oct 2013 | 9.4 | $29.00 |
| Oct 2019 | 9.2 | $10.00 |
| Dec 2018 | 9.2 | $9.50 |
| Aug 2023 | 9.0 | $9.70 |
| Jul 2021 | 9.0 | $11.50 |
| Apr 2021 | 9.0 | $9.00 |
| Nov 2020 | 9.0 | $9.90 |
| Aug 2017 | 9.0 | $11.54 |
| Sep 2015 | 9.0 | $5.03 |
| Oct 2013 | 9.0 | $22.00 |
| Mar 2022 | 8.5 | $9.90 |
| Dec 2021 | 8.5 | $8.49 |
| Jan 2015 | 8.0 | $19.00 |
| Sep 2015 | 4.0 | $1.90 |