| Sold | Grade | Monthly Average |
| Mar 2026 | 3.5 | $57.00 |
| Jan 2026 | 3.0 | $36.10 |
| Feb 2022 | 4.5 | $140.00 |
| Oct 2021 | 4.0 | $50.00 |
| Jan 2011 | 4.0 | $73.00 |
| Aug 2022 | 3.5 | $66.00 |
| Nov 2018 | 3.5 | $66.00 |
| Apr 2021 | 3.0 | $65.00 |
| Sep 2012 | 3.0 | $20.24 |
| Oct 2023 | 2.5 | $47.00 |
| Mar 2021 | 2.5 | $44.00 |
| Oct 2016 | 2.5 | $19.00 |
| Aug 2021 | 2.0 | $38.00 |
| Sep 2020 | 2.0 | $42.00 |
| Mar 2019 | 2.0 | $51.00 |
| Apr 2012 | 2.0 | $38.00 |
| Feb 2012 | 1.8 | $43.00 |
| May 2024 | 1.0 | $22.00 |
| Feb 2023 | 1.0 | $21.00 |