| Sold | Grade | Monthly Average |
| Feb 2014 | 9.4 | $3.00 |
| Feb 2013 | 9.4 | $3.00 |
| Oct 2010 | 9.4 | $3.00 |
| Jul 2010 | 9.4 | $3.00 |
| Jun 2010 | 9.4 | $3.00 |
| Apr 2010 | 9.4 | $0.99 |
| Mar 2008 | 9.4 | $2.00 |
| Mar 2005 | 9.4 | $2.00 |
| Oct 2004 | 9.4 | $2.00 |
| Oct 2022 | 8.0 | $3.20 |
| Jan 2022 | 8.0 | $3.20 |
| Mar 2021 | 8.0 | $2.40 |
| Nov 2019 | 8.0 | $1.92 |
| Dec 2018 | 8.0 | $2.40 |
| Oct 2015 | 8.0 | $2.40 |
| Aug 2015 | 8.0 | $2.40 |
| Apr 2022 | 6.0 | $2.16 |
| Jun 2021 | 6.0 | $1.80 |
| Oct 2020 | 6.0 | $2.00 |
| Mar 2018 | 6.0 | $1.95 |