| Sold | Grade | Monthly Average |
| Nov 2025 | 4.0 | $21.00 |
| Jan 2013 | 8.0 | $74.00 |
| Apr 2012 | 6.0 | $64.00 |
| Oct 2014 | 5.5 | $30.00 |
| Oct 2010 | 5.0 | $50.00 |
| May 2025 | 4.5 | $565.00 |
| Oct 2012 | 4.0 | $17.45 |
| Nov 2011 | 4.0 | $28.00 |
| Mar 2018 | 3.0 | $10.25 |
| Sep 2015 | 2.5 | $16.75 |
| Sep 2017 | 2.0 | $16.01 |
| Aug 2010 | 2.0 | $13.50 |
| Sep 2017 | 1.5 | $7.01 |
| Jan 2013 | 0.5 | $3.10 |