| Sold | Grade | Monthly Average |
| May 2026 | 9.0 | $35.00 |
| May 2019 | 9.4 | $21.00 |
| Jan 2019 | 9.4 | $6.99 |
| Aug 2012 | 9.4 | $7.00 |
| May 2012 | 9.4 | $7.00 |
| Apr 2012 | 9.4 | $7.48 |
| Dec 2011 | 9.4 | $7.00 |
| Nov 2011 | 9.4 | $7.00 |
| Feb 2026 | 8.0 | $24.00 |
| Jan 2025 | 8.0 | $5.49 |
| Nov 2023 | 8.0 | $4.94 |
| Feb 2021 | 8.0 | $5.49 |
| Aug 2016 | 8.0 | $5.49 |
| Oct 2025 | 5.5 | $50.00 |
| Sep 2018 | 4.0 | $2.80 |