| Sold | Grade | Monthly Average |
| Jan 2016 | 8.0 | $4.00 |
| Jan 2013 | 8.0 | $0.90 |
| Jan 2012 | 8.0 | $2.40 |
| Sep 2021 | 7.0 | $7.00 |
| Sep 2022 | 6.5 | $7.50 |
| Oct 2023 | 6.0 | $6.00 |
| May 2023 | 6.0 | $6.00 |
| Apr 2021 | 6.0 | $6.00 |
| May 2020 | 6.0 | $4.80 |
| Nov 2019 | 6.0 | $4.80 |
| Jun 2017 | 6.0 | $4.49 |
| Mar 2013 | 6.0 | $2.40 |
| Jan 2013 | 6.0 | $0.80 |
| Jan 2022 | 5.5 | $5.49 |
| May 2023 | 4.0 | $4.00 |
| Apr 2021 | 4.0 | $4.00 |