| Sold | Grade | Monthly Average |
| Feb 2017 | 9.4 | $19.95 |
| Dec 2015 | 9.4 | $19.95 |
| Feb 2015 | 9.4 | $19.95 |
| Nov 2014 | 9.4 | $22.50 |
| Apr 2013 | 9.4 | $21.00 |
| May 2011 | 9.4 | $18.90 |
| Mar 2011 | 9.4 | $21.00 |
| Jan 2011 | 9.4 | $21.00 |
| Sep 2010 | 9.4 | $21.00 |
| Nov 2009 | 9.4 | $21.00 |
| Sep 2009 | 9.4 | $24.00 |
| Feb 2009 | 9.4 | $24.00 |
| Jan 2009 | 9.4 | $24.00 |
| Apr 2008 | 9.4 | $24.00 |
| Mar 2008 | 9.4 | $24.00 |
| Aug 2017 | 8.0 | $15.75 |
| May 2010 | 8.0 | $16.75 |