| Sold | Grade | Monthly Average |
| Jun 2017 | 9.4 | $4.00 |
| Mar 2013 | 9.4 | $2.70 |
| Jan 2012 | 9.4 | $3.20 |
| Jun 2025 | 9.2 | $2.65 |
| May 2019 | 8.0 | $3.20 |
| Oct 2018 | 8.0 | $3.20 |
| Feb 2018 | 8.0 | $3.20 |
| Oct 2017 | 8.0 | $3.20 |
| Dec 2015 | 8.0 | $2.40 |
| Sep 2015 | 8.0 | $2.40 |
| May 2015 | 8.0 | $2.40 |
| May 2014 | 8.0 | $2.40 |
| Jul 2012 | 8.0 | $2.40 |
| Mar 2012 | 8.0 | $2.40 |
| May 2010 | 8.0 | $2.99 |
| Jan 2009 | 8.0 | $2.00 |
| Nov 2008 | 8.0 | $2.00 |
| Apr 2022 | 6.0 | $6.00 |
| Apr 2017 | 6.0 | $2.40 |
| Jun 2012 | 6.0 | $2.15 |