| Sold | Grade | Monthly Average |
| Jan 2016 | 9.4 | $5.00 |
| Feb 2015 | 9.4 | $5.00 |
| Sep 2013 | 9.4 | $4.30 |
| Jul 2013 | 9.4 | $4.75 |
| Jun 2013 | 9.4 | $4.92 |
| Oct 2018 | 8.0 | $2.10 |
| Mar 2015 | 8.0 | $3.60 |
| Feb 2015 | 8.0 | $4.00 |
| Sep 2013 | 8.0 | $3.40 |
| Aug 2013 | 8.0 | $3.75 |
| Sep 2011 | 8.0 | $5.20 |
| Nov 2018 | 6.5 | $25.00 |
| Sep 2019 | 6.0 | $2.00 |
| Mar 2014 | 6.0 | $3.30 |
| Oct 2013 | 6.0 | $2.60 |