| Sold | Grade | Monthly Average |
| Feb 2012 | 9.4 | $3.40 |
| Aug 2020 | 8.0 | $8.00 |
| Nov 2016 | 8.0 | $2.99 |
| Aug 2010 | 8.0 | $3.80 |
| Oct 2023 | 6.0 | $25.00 |
| Jul 2018 | 6.0 | $3.90 |
| Jun 2018 | 6.0 | $3.90 |
| Oct 2015 | 6.0 | $1.80 |
| Feb 2015 | 6.0 | $1.80 |
| Apr 2012 | 6.0 | $2.00 |
| May 2010 | 6.0 | $2.60 |
| Nov 2016 | 4.0 | $1.53 |
| Oct 2015 | 4.0 | $1.35 |