| Sold | Grade | Monthly Average |
| Nov 2016 | 8.0 | $34.00 |
| Jun 2021 | 7.5 | $55.00 |
| Aug 2012 | 7.5 | $17.00 |
| Nov 2017 | 7.0 | $30.00 |
| May 2010 | 7.0 | $21.00 |
| Sep 2023 | 6.0 | $17.50 |
| Feb 2017 | 6.0 | $34.00 |
| Jul 2016 | 6.0 | $14.25 |
| Oct 2015 | 6.0 | $15.00 |
| Jun 2019 | 5.0 | $12.00 |
| Nov 2018 | 5.0 | $17.00 |
| Jun 2013 | 4.5 | $11.00 |
| Sep 2022 | 4.0 | $10.00 |
| Apr 2019 | 4.0 | $10.00 |
| May 2018 | 4.0 | $9.50 |
| Apr 2016 | 4.0 | $10.00 |