| Sold | Grade | Monthly Average |
| Feb 2017 | 6.0 | $97.00 |
| Jan 2014 | 4.0 | $45.00 |
| Feb 2024 | 3.0 | $37.00 |
| Feb 2012 | 2.5 | $27.09 |
| Jan 2025 | 2.0 | $32.00 |
| Oct 2018 | 2.0 | $35.50 |
| Mar 2017 | 2.0 | $34.50 |
| May 2025 | 1.8 | $30.00 |
| Jul 2023 | 1.8 | $31.00 |
| May 2021 | 1.8 | $48.00 |
| Dec 2018 | 1.8 | $41.00 |
| Feb 2015 | 1.5 | $12.88 |
| Mar 2015 | 0.5 | $11.90 |