| Sold | Grade | Monthly Average |
| Mar 2026 | 4.0 | $40.00 |
| Feb 2016 | 9.4 | $29.00 |
| Jun 2012 | 9.4 | $20.25 |
| Jun 2011 | 9.4 | $14.00 |
| Apr 2010 | 9.4 | $14.25 |
| Mar 2010 | 9.4 | $14.25 |
| Feb 2010 | 9.4 | $14.25 |
| Oct 2009 | 9.4 | $14.25 |
| Sep 2009 | 9.4 | $13.95 |
| Aug 2009 | 9.4 | $13.95 |
| Mar 2024 | 8.0 | $300.00 |
| Apr 2019 | 8.0 | $17.50 |
| Nov 2017 | 8.0 | $15.75 |