| Sold | Grade | Monthly Average |
| Nov 2025 | 6.0 | $36.00 |
| Jun 2024 | 9.4 | $30.80 |
| May 2024 | 9.4 | $44.00 |
| Nov 2023 | 9.4 | $26.40 |
| Jun 2023 | 9.4 | $44.10 |
| Nov 2022 | 9.4 | $59.95 |
| Jan 2016 | 9.4 | $79.95 |
| Sep 2013 | 9.4 | $79.95 |
| Feb 2013 | 9.4 | $83.30 |
| Dec 2021 | 8.0 | $48.00 |
| Nov 2021 | 8.0 | $48.00 |
| Oct 2017 | 8.0 | $80.00 |
| Dec 2015 | 8.0 | $63.00 |