| Sold | Grade | Monthly Average |
| Aug 2012 | 7.0 | $12.50 |
| Mar 2011 | 7.0 | $12.50 |
| Aug 2016 | 6.5 | $17.00 |
| Dec 2011 | 6.5 | $10.75 |
| Dec 2019 | 5.0 | $7.90 |
| Apr 2011 | 4.5 | $7.20 |
| Feb 2017 | 4.0 | $6.60 |
| Feb 2011 | 4.0 | $6.60 |
| Sep 2025 | 2.5 | $11.00 |
| Aug 2019 | 2.0 | $3.60 |
| Mar 2018 | 2.0 | $3.42 |
| Aug 2010 | 1.0 | $1.99 |