| Sold | Grade | Monthly Average |
| May 2018 | 5.5 | $95.00 |
| Jul 2012 | 4.0 | $34.00 |
| May 2023 | 3.5 | $78.00 |
| Nov 2022 | 2.5 | $41.00 |
| May 2021 | 2.5 | $40.00 |
| Jan 2015 | 2.0 | $29.00 |
| Apr 2021 | 1.8 | $25.50 |
| Aug 2020 | 1.8 | $25.50 |
| Jun 2018 | 1.8 | $19.00 |
| Apr 2012 | 1.8 | $26.30 |
| Oct 2018 | 1.5 | $25.00 |
| Mar 2020 | 1.0 | $15.75 |
| Nov 2017 | 1.0 | $17.75 |
| Mar 2023 | 0.5 | $7.90 |
| Nov 2019 | 0.5 | $7.90 |