| Sold | Grade | Monthly Average |
| Feb 2012 | 5.0 | $4.80 |
| Nov 2014 | 4.0 | $4.65 |
| Jul 2013 | 4.0 | $3.95 |
| Jun 2010 | 4.0 | $1.90 |
| Jul 2010 | 3.5 | $1.90 |
| Aug 2023 | 3.0 | $4.90 |
| Jul 2017 | 3.0 | $4.20 |
| Sep 2011 | 3.0 | $2.49 |
| May 2015 | 2.5 | $2.60 |
| Feb 2011 | 2.5 | $2.10 |
| Nov 2010 | 2.5 | $2.10 |
| Nov 2021 | 2.0 | $2.70 |
| May 2019 | 2.0 | $3.00 |
| Dec 2013 | 2.0 | $1.90 |
| Aug 2012 | 2.0 | $1.80 |
| Feb 2011 | 2.0 | $1.65 |
| Jul 2012 | 1.0 | $1.10 |