| Sold | Grade | Monthly Average |
| Mar 2024 | 3.5 | $7.00 |
| Dec 2023 | 3.5 | $3.80 |
| Dec 2015 | 6.0 | $6.00 |
| Sep 2022 | 4.5 | $12.00 |
| Aug 2023 | 4.0 | $10.00 |
| May 2023 | 4.0 | $4.80 |
| Sep 2022 | 4.0 | $4.80 |
| May 2022 | 4.0 | $4.56 |
| May 2023 | 3.5 | $3.80 |
| May 2018 | 3.0 | $3.10 |
| Nov 2009 | 3.0 | $1.40 |
| Oct 2021 | 2.0 | $2.40 |
| Dec 2018 | 2.0 | $2.00 |
| Mar 2013 | 1.8 | $1.70 |
| Aug 2010 | 1.8 | $1.70 |
| Aug 2013 | 1.5 | $1.49 |