| Sold | Grade | Monthly Average |
| Feb 2014 | 6.0 | $8.10 |
| May 2024 | 4.5 | $9.90 |
| Jan 2022 | 4.5 | $9.90 |
| Oct 2023 | 4.0 | $9.00 |
| Sep 2022 | 4.0 | $9.00 |
| Jan 2021 | 4.0 | $9.00 |
| May 2020 | 4.0 | $9.75 |
| Sep 2019 | 4.0 | $9.00 |
| Mar 2019 | 4.0 | $9.00 |
| Feb 2014 | 4.0 | $5.25 |
| Feb 2013 | 3.5 | $4.80 |
| Jun 2018 | 3.0 | $6.30 |
| Nov 2009 | 2.5 | $2.49 |
| Dec 2021 | 2.0 | $4.49 |
| Jan 2018 | 2.0 | $2.70 |