| Sold | Grade | Monthly Average |
| Nov 2021 | 7.0 | $17.00 |
| Sep 2019 | 6.0 | $15.00 |
| Feb 2021 | 5.5 | $13.50 |
| Oct 2010 | 5.0 | $7.60 |
| Jun 2024 | 4.0 | $8.00 |
| Nov 2023 | 4.0 | $8.10 |
| Oct 2018 | 4.0 | $10.00 |
| Apr 2018 | 4.0 | $9.50 |
| Oct 2013 | 4.0 | $3.80 |
| Nov 2010 | 4.0 | $6.40 |
| Sep 2024 | 3.5 | $8.00 |
| Aug 2011 | 3.0 | $3.90 |
| May 2021 | 2.5 | $5.70 |
| Aug 2011 | 1.8 | $2.49 |
| Jun 2021 | 1.0 | $2.37 |