| Sold | Grade | Monthly Average |
| Dec 2025 | 9.4 | $75.00 |
| Mar 2024 | 9.4 | $87.50 |
| Jan 2024 | 9.4 | $77.40 |
| Nov 2023 | 9.4 | $51.60 |
| Mar 2022 | 9.4 | $112.50 |
| Jan 2021 | 9.4 | $89.96 |
| Jul 2020 | 9.4 | $89.96 |
| Jan 2018 | 9.4 | $99.95 |
| Mar 2025 | 8.5 | $70.00 |
| Oct 2023 | 8.0 | $90.00 |
| Dec 2018 | 8.0 | $79.00 |
| May 2018 | 8.0 | $79.00 |
| Apr 2023 | 6.0 | $60.00 |