| Sold | Grade | Monthly Average |
| Apr 2017 | 9.4 | $40.00 |
| Mar 2021 | 9.2 | $54.95 |
| Jul 2019 | 9.2 | $26.60 |
| Nov 2017 | 9.0 | $28.80 |
| Apr 2014 | 9.0 | $36.00 |
| Jun 2024 | 8.5 | $135.00 |
| Jul 2023 | 8.5 | $135.00 |
| Sep 2021 | 8.0 | $50.00 |
| Jun 2025 | 7.5 | $81.00 |
| Jun 2023 | 7.5 | $36.00 |
| May 2018 | 7.0 | $31.00 |
| Nov 2021 | 6.5 | $38.00 |
| Sep 2015 | 5.5 | $22.00 |