| Sold | Grade | Monthly Average |
| Jul 2022 | 5.5 | $41.00 |
| Nov 2021 | 4.5 | $37.00 |
| Aug 2024 | 4.0 | $29.00 |
| Jul 2023 | 4.0 | $30.00 |
| Sep 2018 | 4.0 | $5.25 |
| Apr 2018 | 4.0 | $4.80 |
| Mar 2019 | 3.0 | $5.60 |
| Dec 2014 | 2.5 | $4.80 |
| Sep 2013 | 2.5 | $4.80 |
| May 2022 | 2.0 | $19.50 |
| Mar 2020 | 2.0 | $10.00 |
| Oct 2010 | 1.0 | $2.00 |