| Sold | Grade | Monthly Average |
| Jul 2013 | 8.0 | $0.90 |
| Jun 2013 | 8.0 | $0.90 |
| Jan 2013 | 8.0 | $1.20 |
| Jun 2011 | 8.0 | $2.60 |
| Oct 2010 | 7.5 | $1.60 |
| Mar 2022 | 6.0 | $2.00 |
| Apr 2021 | 6.0 | $2.40 |
| Nov 2017 | 6.0 | $2.40 |
| Nov 2012 | 6.0 | $0.75 |
| Mar 2011 | 6.0 | $2.20 |
| Oct 2010 | 6.0 | $1.60 |
| Dec 2024 | 4.0 | $2.50 |
| Jun 2022 | 4.0 | $2.40 |
| Jul 2018 | 4.0 | $1.70 |
| Apr 2018 | 4.0 | $1.70 |
| Jun 2016 | 4.0 | $1.60 |
| Jul 2011 | 4.0 | $1.40 |
| May 2010 | 4.0 | $1.60 |
| Mar 2008 | 4.0 | $1.49 |