| Sold | Grade | Monthly Average |
| Jan 2020 | 9.4 | $2.00 |
| Jun 2014 | 9.2 | $35.00 |
| Aug 2013 | 9.2 | $12.00 |
| Jun 2013 | 9.2 | $29.95 |
| May 2013 | 9.2 | $27.50 |
| Jul 2018 | 8.5 | $23.00 |
| Mar 2016 | 8.5 | $35.00 |
| Jan 2015 | 8.5 | $35.00 |
| Oct 2020 | 8.0 | $2.00 |
| Nov 2019 | 8.0 | $2.00 |
| Oct 2019 | 8.0 | $1.80 |
| Jun 2019 | 8.0 | $1.70 |
| Nov 2017 | 8.0 | $1.70 |
| Aug 2017 | 8.0 | $1.70 |
| Apr 2016 | 6.0 | $1.22 |
| Jan 2014 | 4.0 | $4.56 |