| Sold | Grade | Monthly Average |
| Feb 2012 | 9.2 | $20.00 |
| May 2011 | 9.2 | $20.00 |
| Jul 2010 | 9.2 | $20.00 |
| Nov 2009 | 9.2 | $20.00 |
| Jul 2023 | 9.0 | $16.00 |
| Sep 2014 | 8.5 | $8.49 |
| Aug 2018 | 8.0 | $6.40 |
| Oct 2017 | 8.0 | $6.40 |
| Feb 2017 | 8.0 | $6.40 |
| Jan 2017 | 8.0 | $5.76 |
| Oct 2015 | 8.0 | $8.00 |
| Mar 2015 | 8.0 | $8.00 |
| Nov 2009 | 8.0 | $16.00 |
| Jul 2015 | 7.5 | $7.49 |