| Sold | Grade | Monthly Average |
| Jun 2017 | 4.0 | $21.70 |
| Dec 2015 | 3.0 | $14.00 |
| Jun 2025 | 2.5 | $67.00 |
| Feb 2022 | 2.5 | $58.00 |
| Nov 2025 | 2.0 | $59.00 |
| Dec 2023 | 2.0 | $43.00 |
| Nov 2023 | 2.0 | $76.50 |
| Jun 2022 | 2.0 | $51.00 |
| Jul 2021 | 2.0 | $30.00 |
| Nov 2018 | 2.0 | $26.00 |
| Oct 2012 | 2.0 | $10.00 |
| May 2013 | 1.8 | $10.35 |
| Dec 2021 | 0.5 | $5.99 |
| Oct 2014 | 0.5 | $5.60 |