| Sold | Grade | Monthly Average |
| Dec 2023 | 3.5 | $38.00 |
| Jan 2024 | 2.5 | $23.00 |
| Mar 2014 | 3.5 | $35.00 |
| Dec 2020 | 3.0 | $17.00 |
| Nov 2019 | 2.5 | $35.00 |
| Dec 2017 | 2.5 | $24.50 |
| Jan 2018 | 2.0 | $23.20 |
| Sep 2017 | 2.0 | $17.25 |
| Dec 2015 | 2.0 | $20.00 |
| Dec 2010 | 2.0 | $22.00 |
| Jul 2010 | 2.0 | $22.00 |
| Feb 2012 | 1.0 | $13.50 |
| Jun 2022 | 0.5 | $7.20 |