| Sold | Grade | Monthly Average |
| Sep 2023 | 9.4 | $8.00 |
| Dec 2023 | 9.2 | $5.80 |
| Dec 2023 | 8.0 | $6.60 |
| Oct 2023 | 3.5 | $3.00 |
| Oct 2017 | 6.0 | $1.70 |
| May 2017 | 6.0 | $1.70 |
| Feb 2017 | 6.0 | $1.70 |
| Oct 2018 | 5.0 | $1.70 |
| Apr 2022 | 4.0 | $2.00 |
| Jul 2021 | 4.0 | $2.00 |
| Jun 2010 | 2.0 | $1.49 |
| Dec 2007 | 2.0 | $1.90 |
| May 2011 | 1.5 | $1.10 |