| Sold | Grade | Monthly Average |
| May 2019 | 5.0 | $10.75 |
| Jul 2023 | 4.5 | $9.90 |
| Apr 2021 | 4.5 | $9.90 |
| Mar 2024 | 4.0 | $10.50 |
| Apr 2023 | 4.0 | $9.00 |
| Sep 2014 | 4.0 | $9.68 |
| Aug 2020 | 3.0 | $4.20 |
| Jul 2017 | 3.0 | $3.00 |
| Jul 2014 | 3.0 | $5.00 |
| Jul 2024 | 2.5 | $3.60 |
| Sep 2021 | 2.0 | $3.00 |
| Jun 2020 | 2.0 | $3.00 |
| Sep 2019 | 2.0 | $3.00 |
| May 2018 | 2.0 | $3.00 |
| Mar 2018 | 2.0 | $3.00 |
| Feb 2018 | 2.0 | $1.80 |
| Jan 2023 | 1.8 | $2.40 |
| Dec 2024 | 1.5 | $2.50 |
| Mar 2013 | 0.5 | $1.10 |