| Sold | Grade | Monthly Average |
| Aug 2017 | 7.0 | $21.00 |
| Jan 2018 | 6.0 | $25.00 |
| Oct 2010 | 6.0 | $12.00 |
| Jun 2025 | 5.5 | $45.00 |
| Jan 2010 | 4.5 | $9.12 |
| Jul 2022 | 4.0 | $13.50 |
| Dec 2018 | 4.0 | $12.00 |
| Jun 2015 | 4.0 | $12.25 |
| Mar 2024 | 3.5 | $6.50 |
| Jan 2023 | 3.5 | $9.50 |
| Aug 2012 | 3.0 | $6.95 |
| Mar 2020 | 2.5 | $7.51 |
| Jan 2013 | 2.5 | $5.70 |
| Jan 2023 | 2.0 | $6.60 |
| Oct 2018 | 2.0 | $6.60 |
| Feb 2016 | 2.0 | $5.49 |
| Mar 2012 | 2.0 | $4.90 |
| Jun 2019 | 1.8 | $6.20 |
| Aug 2024 | 1.0 | $3.90 |
| Aug 2020 | 1.0 | $3.90 |
| Jan 2012 | 1.0 | $3.10 |