| Sold | Grade | Monthly Average |
| Dec 2020 | 4.5 | $49.00 |
| Sep 2020 | 4.5 | $11.00 |
| Jan 2024 | 4.0 | $11.25 |
| Jun 2018 | 4.0 | $10.00 |
| Aug 2012 | 4.0 | $6.00 |
| Jan 2010 | 4.0 | $6.40 |
| Mar 2020 | 3.0 | $7.00 |
| Oct 2022 | 2.5 | $20.00 |
| Jun 2016 | 2.5 | $6.00 |
| Dec 2010 | 2.5 | $3.60 |
| Apr 2025 | 2.0 | $5.60 |
| Jun 2022 | 2.0 | $5.60 |
| Jul 2011 | 1.8 | $2.40 |
| Oct 2012 | 1.5 | $2.10 |
| Feb 2012 | 1.0 | $1.49 |
| Oct 2011 | 1.0 | $1.49 |
| Apr 2022 | 0.5 | $4.00 |