| Sold | Grade | Monthly Average |
| Apr 2021 | 6.5 | $34.00 |
| Jun 2012 | 6.5 | $27.00 |
| Jun 2021 | 6.0 | $44.00 |
| Dec 2024 | 5.5 | $52.00 |
| Nov 2022 | 5.5 | $21.00 |
| May 2011 | 5.5 | $17.75 |
| Aug 2019 | 5.0 | $25.00 |
| May 2024 | 4.5 | $38.00 |
| Mar 2016 | 4.5 | $15.25 |
| Jun 2018 | 4.0 | $47.49 |
| Sep 2025 | 3.5 | $65.00 |
| Apr 2023 | 3.5 | $25.20 |
| Jan 2022 | 3.0 | $13.00 |
| Oct 2018 | 3.0 | $9.80 |
| Feb 2017 | 3.0 | $9.80 |
| Aug 2016 | 3.0 | $9.80 |
| Jul 2014 | 3.0 | $12.95 |
| Apr 2023 | 2.0 | $16.20 |
| Sep 2020 | 2.0 | $21.00 |
| Dec 2020 | 1.0 | $5.60 |