| Sold | Grade | Monthly Average |
| Dec 2025 | 4.5 | $32.00 |
| Dec 2025 | 2.5 | $16.00 |
| Mar 2010 | 7.0 | $15.91 |
| Sep 2010 | 6.5 | $14.25 |
| Feb 2014 | 4.5 | $8.80 |
| Oct 2023 | 4.0 | $24.00 |
| Mar 2022 | 4.0 | $24.00 |
| Jul 2016 | 4.0 | $10.00 |
| May 2024 | 3.5 | $18.05 |
| Jul 2024 | 2.0 | $5.22 |
| Jan 2020 | 2.0 | $5.49 |
| Nov 2018 | 2.0 | $5.49 |
| Aug 2016 | 1.5 | $4.49 |