| Sold | Grade | Monthly Average |
| Apr 2026 | 6.0 | $12.75 |
| Dec 2010 | 9.4 | $1.49 |
| Jul 2018 | 8.0 | $4.00 |
| May 2017 | 8.0 | $1.70 |
| Apr 2017 | 8.0 | $2.25 |
| Sep 2013 | 8.0 | $1.20 |
| Jul 2012 | 8.0 | $1.20 |
| Oct 2011 | 8.0 | $1.20 |
| Sep 2011 | 8.0 | $1.20 |
| Feb 2011 | 8.0 | $1.20 |
| Jan 2011 | 8.0 | $1.20 |
| Dec 2009 | 8.0 | $1.00 |
| Nov 2009 | 8.0 | $1.00 |
| Dec 2021 | 6.5 | $7.70 |
| Feb 2026 | 6.0 | $12.75 |
| Mar 2025 | 6.0 | $12.75 |
| Dec 2023 | 6.0 | $12.75 |
| Apr 2018 | 6.0 | $2.60 |
| Mar 2018 | 6.0 | $2.60 |
| Oct 2015 | 6.0 | $1.45 |
| Aug 2022 | 4.0 | $8.49 |
| Mar 2020 | 4.0 | $2.40 |