| Sold | Grade | Monthly Average |
| Sep 2023 | 8.5 | $12.00 |
| Jan 2021 | 8.5 | $36.00 |
| May 2023 | 8.0 | $23.00 |
| Dec 2022 | 8.0 | $26.00 |
| Feb 2024 | 7.5 | $3.00 |
| Nov 2010 | 7.5 | $67.00 |
| Jul 2023 | 7.0 | $8.00 |
| May 2020 | 7.0 | $29.50 |
| Jun 2022 | 6.5 | $27.50 |
| Jun 2022 | 6.0 | $25.50 |
| Feb 2016 | 6.0 | $11.00 |
| Jan 2016 | 6.0 | $34.00 |
| Nov 2010 | 6.0 | $53.00 |
| Sep 2024 | 5.0 | $3.20 |
| Feb 2013 | 5.0 | $42.55 |
| Mar 2025 | 4.5 | $2.50 |
| May 2018 | 4.5 | $32.00 |
| Mar 2024 | 4.0 | $2.50 |
| Jul 2018 | 2.5 | $17.50 |
| Sep 2014 | 2.5 | $12.60 |
| Jan 2011 | 2.0 | $13.00 |