| Sold | Grade | Monthly Average |
| Dec 2022 | 9.4 | $51.00 |
| Sep 2014 | 9.4 | $11.40 |
| Oct 2011 | 9.4 | $12.00 |
| May 2015 | 9.2 | $21.00 |
| Aug 2015 | 9.0 | $19.00 |
| Sep 2014 | 9.0 | $9.00 |
| Jul 2020 | 8.5 | $8.49 |
| Oct 2014 | 8.5 | $13.33 |
| Jan 2014 | 8.5 | $37.95 |
| Dec 2013 | 8.5 | $8.49 |
| Dec 2012 | 8.5 | $8.49 |
| Sep 2014 | 8.0 | $8.00 |
| Dec 2012 | 8.0 | $8.00 |
| Dec 2012 | 7.5 | $7.49 |
| Nov 2015 | 7.0 | $13.66 |
| Sep 2014 | 7.0 | $7.00 |
| Sep 2020 | 6.5 | $6.49 |