| Sold | Grade | Monthly Average |
| Sep 2025 | 9.4 | $50.00 |
| Jan 2017 | PGX 9.4 | $41.00 |
| Feb 2013 | 9.4 | $45.60 |
| Feb 2012 | 9.4 | $45.60 |
| Jul 2011 | 9.4 | $48.00 |
| Mar 2011 | 9.4 | $48.00 |
| Mar 2010 | 9.4 | $48.00 |
| Jun 2014 | 8.5 | $30.60 |
| Jan 2014 | 8.5 | $30.60 |
| Aug 2015 | 7.5 | $16.88 |
| Jul 2013 | 7.5 | $30.00 |