| Sold | Grade | Monthly Average |
| Apr 2020 | 5.0 | $65.00 |
| Sep 2014 | 3.5 | $36.75 |
| Jun 2012 | 3.5 | $29.93 |
| May 2023 | 3.0 | $28.00 |
| Apr 2021 | 3.0 | $27.00 |
| May 2013 | 3.0 | $27.50 |
| Jan 2024 | 2.0 | $10.00 |
| Sep 2020 | 2.0 | $14.25 |
| May 2017 | 2.0 | $21.00 |
| Feb 2016 | 2.0 | $21.00 |
| Sep 2015 | 2.0 | $21.50 |
| Apr 2010 | 2.0 | $19.50 |
| Dec 2019 | 1.8 | $23.00 |
| Jun 2018 | 1.8 | $24.75 |
| Aug 2017 | 1.8 | $15.20 |
| Jun 2022 | 1.0 | $9.00 |
| Jan 2021 | 1.0 | $9.00 |
| Feb 2020 | 1.0 | $7.20 |
| Apr 2018 | 1.0 | $13.00 |
| Aug 2021 | 0.5 | $4.49 |