| Sold | Grade | Monthly Average |
| Mar 2017 | 8.0 | $8.00 |
| May 2023 | 7.5 | $5.10 |
| Jan 2010 | 6.5 | $5.20 |
| Apr 2021 | 6.0 | $4.80 |
| Jul 2012 | 6.0 | $3.15 |
| Nov 2010 | 6.0 | $2.70 |
| Mar 2010 | 6.0 | $2.57 |
| May 2012 | 5.0 | $1.90 |
| May 2010 | 5.0 | $1.80 |
| Jul 2022 | 4.0 | $2.40 |
| Mar 2022 | 4.0 | $2.40 |
| Sep 2019 | 4.0 | $3.20 |
| Jan 2015 | 4.0 | $2.10 |
| Nov 2011 | 4.0 | $1.60 |
| Jul 2010 | 4.0 | $1.60 |
| Jan 2010 | 4.0 | $2.49 |
| Apr 2015 | 3.5 | $1.90 |
| Jan 2014 | 3.5 | $1.90 |
| Dec 2009 | 3.0 | $2.10 |
| Nov 2018 | 2.5 | $2.10 |
| Jan 2012 | 2.5 | $1.10 |