| Sold | Grade | Monthly Average |
| Jun 2026 | 3.5 | $37.00 |
| Dec 2020 | 4.5 | $92.00 |
| Aug 2024 | 3.5 | $30.00 |
| Feb 2019 | 3.5 | $70.30 |
| Jul 2023 | 3.0 | $70.00 |
| Apr 2015 | 2.0 | $21.00 |
| Sep 2013 | 2.0 | $23.50 |
| Jul 2022 | 1.8 | $28.50 |
| Oct 2025 | 1.5 | $29.00 |
| Apr 2013 | 1.0 | $13.50 |
| Nov 2020 | 0.5 | $12.50 |
| Feb 2019 | 0.5 | $13.50 |