| Sold | Grade | Monthly Average |
| Dec 2016 | 5.0 | $26.50 |
| Jan 2023 | 4.0 | $28.00 |
| Jan 2021 | 4.0 | $26.60 |
| Jun 2020 | 4.0 | $33.25 |
| May 2018 | 4.0 | $35.00 |
| Dec 2017 | 4.0 | $28.00 |
| Apr 2025 | 3.5 | $42.00 |
| Nov 2023 | 3.0 | $29.00 |
| May 2025 | 2.0 | $42.00 |
| Mar 2017 | 2.0 | $11.40 |
| Dec 2014 | 1.8 | $13.75 |
| Aug 2019 | 1.5 | $12.50 |
| Dec 2018 | 1.5 | $11.88 |
| Jan 2018 | 1.0 | $8.90 |
| Jan 2015 | 1.0 | $9.30 |
| Dec 2012 | 1.0 | $6.70 |
| Dec 2020 | 0.5 | $4.49 |