| Sold | Grade | Monthly Average |
| Jan 2026 | 1.5 | $13.50 |
| Dec 2022 | 5.0 | $26.50 |
| Aug 2023 | 3.0 | $14.49 |
| Jul 2013 | 3.0 | $10.75 |
| Jan 2014 | 2.5 | $9.20 |
| Oct 2023 | 2.0 | $11.00 |
| Apr 2021 | 2.0 | $13.00 |
| Sep 2020 | 2.0 | $12.00 |
| Feb 2012 | 2.0 | $7.70 |
| May 2023 | 1.5 | $7.70 |
| Apr 2018 | 1.5 | $10.50 |
| Jul 2010 | 1.5 | $6.30 |
| May 2025 | 1.0 | $8.00 |
| May 2022 | 1.0 | $5.49 |
| Dec 2011 | 1.0 | $4.27 |
| Oct 2011 | 1.0 | $4.49 |
| Apr 2010 | 1.0 | $4.49 |