| Sold | Grade | Monthly Average |
| Apr 2012 | 7.0 | $25.50 |
| Nov 2023 | 5.5 | $60.00 |
| Nov 2018 | 4.0 | $9.50 |
| Jun 2018 | 4.0 | $10.00 |
| Oct 2011 | 4.0 | $10.00 |
| Aug 2021 | 3.0 | $23.00 |
| Mar 2018 | 3.0 | $8.50 |
| Dec 2024 | 2.0 | $11.70 |
| Nov 2023 | 2.0 | $5.49 |
| Sep 2021 | 2.0 | $5.22 |
| Dec 2016 | 2.0 | $5.49 |
| Jun 2020 | 1.5 | $4.20 |
| Feb 2017 | 1.5 | $4.20 |
| May 2012 | 0.1 | $1.35 |