| Sold | Grade | Monthly Average |
| Jan 2026 | 2.0 | $10.75 |
| Sep 2022 | 5.0 | $30.00 |
| Nov 2022 | 4.0 | $20.50 |
| Apr 2017 | 4.0 | $14.49 |
| Mar 2016 | 4.0 | $18.67 |
| Dec 2012 | 4.0 | $10.00 |
| Oct 2011 | 3.5 | $14.50 |
| Nov 2022 | 3.0 | $15.25 |
| May 2015 | 3.0 | $12.15 |
| Apr 2024 | 2.0 | $10.75 |
| May 2015 | 2.0 | $9.60 |
| Sep 2012 | 0.5 | $1.60 |