| Sold | Grade | Monthly Average |
| Oct 2020 | 9.4 | $23.00 |
| Jan 2020 | 9.0 | $12.00 |
| May 2024 | 6.5 | $8.50 |
| Nov 2019 | 6.0 | $18.00 |
| Sep 2014 | 6.0 | $18.00 |
| Oct 2017 | 5.5 | $11.55 |
| Jan 2023 | 5.0 | $9.00 |
| Jan 2022 | 4.5 | $8.10 |
| Nov 2017 | 4.5 | $7.29 |
| Jan 2017 | 4.0 | $4.30 |
| Apr 2015 | 4.0 | $12.00 |
| Aug 2021 | 3.5 | $6.30 |
| Sep 2018 | 3.0 | $9.00 |
| May 2017 | 3.0 | $5.40 |
| Nov 2013 | 3.0 | $5.40 |
| Apr 2020 | 2.0 | $6.00 |