| Sold | Grade | Monthly Average |
| Aug 2023 | 4.5 | $54.00 |
| Nov 2021 | 4.0 | $41.40 |
| Dec 2023 | 3.5 | $71.00 |
| Jan 2019 | 3.5 | $47.50 |
| May 2020 | 3.0 | $27.00 |
| Jun 2012 | 3.0 | $38.50 |
| Jul 2024 | 2.5 | $41.00 |
| Jun 2016 | 2.5 | $31.00 |
| Aug 2025 | 2.0 | $26.50 |
| Nov 2020 | 2.0 | $19.00 |
| Nov 2017 | 2.0 | $12.50 |
| Feb 2015 | 0.5 | $9.41 |