| Sold | Grade | Monthly Average |
| Feb 2015 | 8.0 | $55.00 |
| Jan 2014 | 8.0 | $43.00 |
| Oct 2016 | 6.0 | $38.00 |
| Feb 2013 | 6.0 | $30.00 |
| May 2020 | 5.0 | $31.50 |
| Sep 2020 | 4.5 | $18.00 |
| Jul 2024 | 4.0 | $20.00 |
| Nov 2023 | 4.0 | $20.00 |
| Oct 2023 | 4.0 | $20.00 |
| Dec 2020 | 4.0 | $20.00 |
| Feb 2014 | 4.0 | $20.00 |
| Sep 2012 | 4.0 | $20.00 |
| Mar 2019 | 2.0 | $10.00 |