| Sold | Grade | Monthly Average |
| Jan 2026 | 4.0 | $6.00 |
| Aug 2010 | 9.4 | $5.00 |
| May 2018 | 6.0 | $5.25 |
| Aug 2015 | 6.0 | $4.80 |
| Feb 2012 | 6.0 | $4.49 |
| Jan 2006 | 6.0 | $2.00 |
| Aug 2022 | 5.0 | $7.49 |
| Sep 2025 | 4.0 | $6.00 |
| Feb 2020 | 3.5 | $3.49 |
| Oct 2020 | 2.0 | $2.00 |
| May 2019 | 2.0 | $2.00 |
| Oct 2012 | 1.0 | $0.80 |