| Sold | Grade | Monthly Average |
| Aug 2026 | 8.0 | $24.70 |
| Sep 2026 | 4.0 | $10.00 |
| May 2011 | 9.4 | $28.50 |
| Feb 2008 | 9.4 | $20.00 |
| Jan 2025 | 9.2 | $47.00 |
| Jun 2014 | 9.2 | $29.95 |
| Mar 2013 | 9.2 | $30.00 |
| Apr 2025 | 8.0 | $21.00 |
| May 2024 | 6.0 | $20.00 |
| Oct 2020 | 6.0 | $16.95 |
| Jul 2020 | 6.0 | $16.95 |
| May 2025 | 5.5 | $21.50 |
| May 2025 | 5.0 | $23.00 |
| Jan 2010 | 4.5 | $11.25 |