| Sold | Grade | Monthly Average |
| Jan 2015 | 8.5 | $39.50 |
| Jun 2019 | 8.0 | $27.00 |
| Sep 2015 | 8.0 | $31.50 |
| Jun 2024 | 7.5 | $30.00 |
| Jun 2019 | 7.5 | $24.00 |
| May 2023 | 6.5 | $46.00 |
| Jan 2021 | 6.0 | $29.00 |
| Feb 2017 | 6.0 | $21.00 |
| Feb 2013 | 6.0 | $25.50 |
| Jun 2017 | 5.5 | $19.50 |
| Jun 2025 | 5.0 | $35.00 |
| Feb 2022 | 5.0 | $35.00 |
| Apr 2019 | 5.0 | $24.00 |
| Feb 2014 | 5.0 | $22.75 |
| Apr 2022 | 4.5 | $19.00 |
| Feb 2022 | 4.5 | $22.00 |
| Oct 2014 | 4.0 | $14.00 |
| Jul 2016 | 2.5 | $15.75 |