| Sold | Grade | Monthly Average |
| Feb 2015 | 7.5 | $14.00 |
| Nov 2012 | 7.0 | $14.00 |
| May 2022 | 6.0 | $11.00 |
| May 2021 | 6.0 | $12.00 |
| Nov 2019 | 6.0 | $12.00 |
| Sep 2022 | 5.0 | $10.00 |
| Jan 2011 | 5.0 | $10.00 |
| Nov 2017 | 4.5 | $7.29 |
| Dec 2023 | 4.0 | $9.12 |
| Oct 2023 | 4.0 | $9.60 |
| Dec 2022 | 4.0 | $8.00 |
| Sep 2021 | 4.0 | $8.00 |
| May 2017 | 4.0 | $6.84 |
| Oct 2024 | 3.0 | $10.50 |
| Jul 2017 | 0.5 | $1.62 |