| Sold | Grade | Monthly Average |
| Nov 2017 | 9.4 | $44.96 |
| Apr 2013 | 9.4 | $49.95 |
| Feb 2023 | 9.2 | $48.00 |
| Sep 2018 | 8.0 | $49.00 |
| Apr 2012 | 8.0 | $18.00 |
| Nov 2022 | 6.0 | $25.20 |
| Oct 2021 | 6.0 | $42.00 |
| Nov 2018 | 6.0 | $75.00 |
| Aug 2017 | 6.0 | $30.00 |
| Jan 2014 | 6.0 | $30.00 |
| Oct 2013 | 6.0 | $30.00 |
| Jul 2013 | 6.0 | $30.00 |