| Sold | Grade | Monthly Average |
| Feb 2018 | 6.5 | $26.00 |
| Nov 2011 | 6.5 | $27.60 |
| Aug 2025 | 6.0 | $32.00 |
| May 2024 | 6.0 | $6.00 |
| Apr 2017 | 6.0 | $24.00 |
| Oct 2020 | 5.5 | $28.00 |
| May 2011 | 5.0 | $20.00 |
| Jan 2013 | 4.0 | $16.00 |
| Feb 2020 | 3.5 | $17.50 |
| Jul 2016 | 3.5 | $14.00 |
| Aug 2015 | 3.5 | $14.00 |
| Aug 2025 | 3.0 | $21.00 |
| Jun 2020 | 3.0 | $15.00 |