| Sold | Grade | Monthly Average |
| Nov 2025 | 3.0 | $46.00 |
| Jan 2018 | 7.5 | $416.00 |
| May 2017 | 3.5 | $62.62 |
| Oct 2021 | 3.0 | $47.00 |
| Jul 2019 | 3.0 | $110.00 |
| Aug 2020 | 2.5 | $94.00 |
| Apr 2013 | 2.5 | $27.50 |
| Feb 2021 | 2.0 | $66.50 |
| Jul 2013 | 2.0 | $23.10 |
| Jan 2012 | 2.0 | $21.00 |
| Nov 2016 | 1.8 | $22.00 |
| Jul 2019 | 1.0 | $30.00 |
| Mar 2019 | 0.5 | $21.00 |
| Dec 2011 | 0.5 | $6.80 |