| Sold | Grade | Monthly Average |
| Jan 2014 | 5.0 | $17.00 |
| Jun 2013 | 5.0 | $23.00 |
| May 2014 | 4.5 | $12.00 |
| Sep 2013 | 4.0 | $19.80 |
| Apr 2010 | 4.0 | $20.90 |
| Jul 2021 | 3.5 | $17.00 |
| Mar 2019 | 2.5 | $12.00 |
| Jul 2014 | 2.5 | $10.80 |
| May 2021 | 2.0 | $10.00 |
| Dec 2024 | 1.8 | $8.80 |
| Jan 2024 | 1.8 | $8.80 |
| Feb 2018 | 1.8 | $8.80 |
| Jun 2023 | 1.5 | $7.70 |
| Mar 2023 | 1.5 | $7.70 |