| Sold | Grade | Monthly Average |
| May 2013 | 6.0 | $6.00 |
| Nov 2016 | 5.0 | $4.56 |
| Nov 2025 | 4.0 | $15.00 |
| Mar 2021 | 4.0 | $5.20 |
| Sep 2022 | 3.5 | $4.49 |
| Feb 2026 | 3.0 | $8.46 |
| Jun 2020 | 3.0 | $3.90 |
| Nov 2017 | 3.0 | $4.10 |
| Dec 2023 | 2.0 | $2.80 |
| Apr 2022 | 2.0 | $2.80 |
| Mar 2018 | 2.0 | $2.20 |
| May 2023 | 1.8 | $2.49 |