| Sold | Grade | Monthly Average |
| May 2024 | 4.5 | $31.00 |
| Nov 2021 | 4.5 | $29.00 |
| Mar 2021 | 4.0 | $21.00 |
| Apr 2018 | 4.0 | $21.50 |
| Jun 2012 | 4.0 | $34.00 |
| Apr 2022 | 3.5 | $14.50 |
| Dec 2021 | 3.0 | $14.00 |
| May 2011 | 3.0 | $23.50 |
| Feb 2023 | 2.5 | $8.55 |
| Jul 2021 | 2.5 | $13.50 |
| May 2013 | 2.5 | $19.75 |
| May 2019 | 2.0 | $16.75 |
| Apr 2014 | 2.0 | $16.50 |
| Mar 2018 | 1.5 | $16.00 |
| Oct 2016 | 1.5 | $16.00 |
| Feb 2021 | 1.0 | $6.30 |