| Sold | Grade | Monthly Average |
| Oct 2012 | 9.4 | $17.90 |
| Mar 2010 | 9.4 | $16.00 |
| Nov 2009 | 9.4 | $16.00 |
| May 2009 | 9.4 | $16.00 |
| Mar 2009 | 9.4 | $16.00 |
| Nov 2008 | 9.4 | $16.00 |
| Sep 2008 | 9.4 | $16.00 |
| Jan 2008 | 9.4 | $16.00 |
| Sep 2020 | 8.0 | $17.00 |
| Jun 2012 | 6.0 | $9.00 |
| Feb 2024 | 4.0 | $6.00 |
| Aug 2022 | 4.0 | $6.00 |