| Sold | Grade | Monthly Average |
| Nov 2015 | 7.5 | $23.00 |
| Aug 2021 | 6.0 | $63.00 |
| Aug 2020 | 6.0 | $18.00 |
| Dec 2019 | 6.0 | $18.00 |
| Jun 2019 | 6.0 | $18.00 |
| Apr 2018 | 5.5 | $16.50 |
| Jan 2017 | 5.5 | $23.00 |
| Jun 2012 | 5.0 | $28.10 |
| Mar 2011 | 5.0 | $25.00 |
| Sep 2013 | 4.5 | $44.75 |
| Aug 2013 | 4.5 | $13.50 |
| Dec 2014 | 4.0 | $12.00 |
| May 2010 | 4.0 | $12.00 |
| Nov 2017 | 3.0 | $2.00 |