| Sold | Grade | Monthly Average |
| Oct 2017 | 4.5 | $17.00 |
| Aug 2025 | 4.0 | $34.00 |
| Jun 2025 | 3.0 | $26.00 |
| Sep 2012 | 3.0 | $11.00 |
| May 2011 | 3.0 | $20.50 |
| Nov 2018 | 2.5 | $20.50 |
| Feb 2022 | 2.0 | $25.00 |
| Aug 2020 | 2.0 | $10.00 |
| Feb 2019 | 2.0 | $17.00 |
| Nov 2013 | 2.0 | $14.25 |
| Jul 2025 | 1.8 | $7.70 |
| Feb 2015 | 1.8 | $22.50 |
| Nov 2018 | 1.5 | $14.25 |