| Sold | Grade | Monthly Average |
| Feb 2026 | 4.0 | $51.00 |
| Nov 2015 | 6.0 | $54.03 |
| Oct 2024 | 5.5 | $57.00 |
| Oct 2017 | 5.0 | $45.00 |
| Oct 2011 | 3.5 | $44.00 |
| Jun 2024 | 2.5 | $23.00 |
| Dec 2019 | 2.5 | $28.50 |
| Jun 2021 | 2.0 | $23.50 |
| Oct 2022 | 1.8 | $21.00 |
| Nov 2021 | 1.8 | $18.90 |
| Feb 2012 | 1.8 | $22.00 |
| Dec 2019 | 1.0 | $12.11 |