| Sold | Grade | Monthly Average |
| May 2024 | 4.0 | $5.70 |
| Dec 2021 | 4.0 | $7.10 |
| Feb 2019 | 4.0 | $6.50 |
| Mar 2015 | 4.0 | $5.70 |
| Apr 2021 | 3.5 | $3.80 |
| May 2022 | 2.0 | $2.40 |
| Feb 2021 | 2.0 | $2.40 |
| Sep 2020 | 2.0 | $2.28 |
| Aug 2019 | 2.0 | $2.40 |
| Aug 2016 | 2.0 | $3.00 |
| Jan 2016 | 2.0 | $3.30 |
| Feb 2011 | 1.5 | $2.30 |