| Sold | Grade | Monthly Average |
| Mar 2023 | 4.5 | $12.50 |
| Oct 2019 | 4.0 | $38.00 |
| Dec 2015 | 4.0 | $23.94 |
| Apr 2012 | 4.0 | $32.40 |
| Jan 2022 | 3.0 | $16.15 |
| Nov 2021 | 3.0 | $15.00 |
| Dec 2020 | 3.0 | $21.50 |
| Mar 2014 | 3.0 | $25.50 |
| Oct 2023 | 2.5 | $14.00 |
| Jun 2023 | 2.0 | $10.00 |
| Feb 2020 | 2.0 | $15.00 |
| Aug 2010 | 2.0 | $16.00 |
| Nov 2023 | 1.8 | $16.50 |
| Jul 2017 | 1.8 | $16.50 |
| May 2021 | 1.0 | $7.60 |
| May 2017 | 1.0 | $10.25 |
| Jan 2017 | 1.0 | $9.74 |
| Jun 2025 | 0.5 | $4.70 |