| Sold | Grade | Monthly Average |
| Nov 2011 | 8.0 | $14.59 |
| Jun 2010 | 8.0 | $33.50 |
| Jan 2010 | 8.0 | $33.50 |
| Sep 2014 | 7.0 | $28.75 |
| Jan 2023 | 3.5 | $40.00 |
| Nov 2011 | 3.0 | $10.75 |
| Dec 2024 | 2.5 | $12.00 |
| Nov 2023 | 2.5 | $8.64 |
| Jan 2022 | 2.5 | $9.60 |
| Jul 2017 | 1.5 | $6.48 |
| May 2021 | 1.0 | $4.00 |
| Oct 2012 | 1.0 | $4.49 |