| Sold | Grade | Monthly Average |
| Jan 2026 | 9.4 | $57.00 |
| Sep 2023 | 9.4 | $51.00 |
| Aug 2012 | 9.4 | $39.95 |
| Feb 2011 | 9.4 | $20.00 |
| Sep 2023 | 8.0 | $45.00 |
| Aug 2023 | 8.0 | $45.00 |
| Oct 2022 | 8.0 | $55.00 |
| Apr 2013 | 8.0 | $28.80 |
| Dec 2024 | 6.0 | $20.40 |
| Feb 2018 | 6.0 | $36.00 |
| Dec 2013 | 6.0 | $36.00 |
| Oct 2015 | 2.0 | $10.80 |