| Sold | Grade | Monthly Average |
| Jan 2023 | 6.0 | $56.00 |
| Nov 2021 | 5.5 | $45.00 |
| Nov 2020 | 5.0 | $50.00 |
| May 2018 | 5.0 | $29.00 |
| Oct 2018 | 2.5 | $16.75 |
| Apr 2017 | 2.0 | $12.50 |
| May 2011 | 2.0 | $12.50 |
| Jan 2011 | 2.0 | $12.50 |
| Nov 2021 | 1.8 | $14.00 |
| May 2021 | 1.8 | $14.00 |
| Nov 2020 | 1.8 | $12.60 |
| Mar 2018 | 1.8 | $13.75 |
| Mar 2018 | 1.5 | $12.00 |
| May 2018 | 1.0 | $8.70 |
| Aug 2021 | 0.5 | $4.30 |