| Sold | Grade | Monthly Average |
| Apr 2026 | 6.5 | $6.49 |
| Sep 2026 | 6.0 | $99.00 |
| Apr 2026 | 4.0 | $4.00 |
| Nov 2013 | 8.0 | $4.80 |
| Mar 2012 | 8.0 | $3.20 |
| Sep 2025 | 6.0 | $2.65 |
| Jul 2022 | 6.0 | $2.00 |
| Mar 2022 | 6.0 | $1.80 |
| Jun 2021 | 6.0 | $2.00 |
| Jun 2020 | 6.0 | $2.00 |
| May 2020 | 6.0 | $2.00 |
| Jan 2020 | 6.0 | $2.00 |
| Jun 2018 | 6.0 | $1.70 |
| Mar 2015 | 6.0 | $3.60 |
| Aug 2012 | 6.0 | $2.40 |
| Aug 2011 | 6.0 | $2.40 |
| Feb 2011 | 6.0 | $2.40 |
| Sep 2025 | 4.0 | $2.65 |
| May 2020 | 4.0 | $2.00 |
| Jan 2019 | 4.0 | $1.70 |
| Aug 2018 | 4.0 | $1.70 |
| Nov 2021 | 2.0 | $2.00 |