| Sold | Grade | Monthly Average |
| Jul 2025 | 4.5 | $41.00 |
| Jul 2025 | 1.8 | $4.80 |
| May 2017 | 4.5 | $15.00 |
| May 2018 | 4.0 | $19.00 |
| Jul 2013 | 4.0 | $10.93 |
| Nov 2010 | 3.5 | $10.00 |
| May 2010 | 2.5 | $7.12 |
| May 2024 | 2.0 | $7.49 |
| Sep 2023 | 1.8 | $6.70 |
| Dec 2011 | 1.5 | $4.90 |
| Nov 2018 | 0.5 | $2.10 |
| Feb 2011 | 0.5 | $1.70 |