| Sold | Grade | Monthly Average |
| Dec 2025 | 3.5 | $19.00 |
| Jul 2015 | 6.0 | $31.50 |
| Jan 2025 | 5.0 | $61.00 |
| Apr 2018 | 4.5 | $25.00 |
| Mar 2025 | 4.0 | $22.00 |
| Jun 2019 | 4.0 | $22.00 |
| Dec 2016 | 4.0 | $17.15 |
| Feb 2025 | 3.5 | $13.50 |
| Jun 2016 | 3.5 | $17.50 |
| Sep 2020 | 3.0 | $10.00 |
| Jul 2010 | 2.5 | $14.50 |
| Jan 2022 | 2.0 | $6.60 |
| Jan 2018 | 2.0 | $10.45 |
| Feb 2015 | 1.8 | $10.50 |
| Jan 2022 | 1.0 | $4.40 |