| Sold | Grade | Monthly Average |
| Feb 2025 | 5.0 | $96.00 |
| Dec 2024 | 3.0 | $20.70 |
| Sep 2020 | 3.0 | $23.00 |
| Mar 2018 | 3.0 | $16.86 |
| May 2011 | 3.0 | $13.75 |
| Mar 2024 | 2.0 | $12.75 |
| Jul 2017 | 2.0 | $6.60 |
| Apr 2020 | 1.8 | $10.25 |
| Jul 2017 | 1.8 | $4.68 |
| Jul 2018 | 1.5 | $8.99 |
| Feb 2016 | 1.5 | $7.70 |
| Dec 2015 | 1.5 | $7.70 |
| Jul 2017 | 1.0 | $3.30 |