| Sold | Grade | Monthly Average |
| Oct 2025 | 2.0 | $8.00 |
| Sep 2011 | 6.5 | $18.00 |
| Aug 2022 | 6.0 | $29.00 |
| Sep 2017 | 6.0 | $22.00 |
| Jun 2013 | 6.0 | $16.75 |
| Jul 2025 | 5.5 | $14.00 |
| Jan 2015 | 5.5 | $13.00 |
| Apr 2022 | 5.0 | $18.00 |
| Feb 2016 | 5.0 | $8.32 |
| Apr 2011 | 5.0 | $12.00 |
| Jan 2024 | 4.5 | $8.50 |
| Sep 2018 | 4.5 | $10.75 |
| Mar 2024 | 4.0 | $24.00 |
| Apr 2019 | 4.0 | $9.60 |
| Apr 2018 | 4.0 | $9.60 |
| Aug 2017 | 4.0 | $8.21 |
| Jul 2012 | 4.0 | $10.85 |
| Apr 2016 | 3.5 | $5.60 |
| Oct 2020 | 3.0 | $18.00 |
| Apr 2011 | 3.0 | $4.80 |