| Sold | Grade | Monthly Average |
| Jul 2026 | 6.0 | $42.00 |
| Dec 2025 | 9.4 | $43.80 |
| Nov 2025 | 9.4 | $56.70 |
| Dec 2024 | 9.4 | $37.80 |
| Jun 2024 | 9.4 | $48.97 |
| Nov 2023 | 9.4 | $34.20 |
| Oct 2023 | 9.4 | $57.00 |
| Jul 2023 | 9.4 | $63.00 |
| Mar 2023 | 9.4 | $54.96 |
| Feb 2023 | 9.4 | $72.48 |
| Jan 2023 | 9.4 | $73.74 |
| Dec 2022 | 9.4 | $69.95 |