| Sold | Grade | Monthly Average |
| Jul 2017 | 9.4 | $36.00 |
| Feb 2012 | 9.4 | $9.49 |
| Jan 2023 | 9.2 | $48.71 |
| Sep 2022 | 9.2 | $23.75 |
| Jun 2022 | 9.2 | $25.00 |
| Feb 2024 | 8.5 | $34.20 |
| Sep 2023 | 8.5 | $45.00 |
| Mar 2023 | 8.0 | $24.00 |
| Dec 2013 | 7.0 | $21.00 |
| May 2020 | 6.5 | $19.50 |
| Nov 2012 | 4.0 | $2.95 |
| Mar 2012 | 3.0 | $2.28 |