| Sold | Grade | Monthly Average |
| Jan 2017 | 8.0 | $70.00 |
| Mar 2015 | 8.0 | $18.00 |
| Jul 2014 | 8.0 | $7.60 |
| Jan 2014 | 8.0 | $8.00 |
| Jul 2011 | 8.0 | $6.00 |
| Oct 2015 | 7.5 | $7.12 |
| Aug 2020 | 7.0 | $49.95 |
| Jun 2018 | 6.0 | $3.00 |
| May 2018 | 6.0 | $6.00 |
| Oct 2016 | 6.0 | $32.54 |
| Apr 2011 | 6.0 | $4.49 |
| Nov 2022 | 5.0 | $19.77 |
| Apr 2018 | 4.5 | $4.27 |
| Jun 2022 | 4.0 | $2.88 |
| May 2018 | 4.0 | $32.54 |
| Jun 2014 | 3.5 | $40.75 |
| Apr 2014 | 3.5 | $3.49 |