| Sold | Grade | Monthly Average |
| Oct 2025 | 6.0 | $8.55 |
| Feb 2013 | 9.4 | $1.70 |
| Nov 2009 | 9.4 | $3.70 |
| Oct 2009 | 9.4 | $6.40 |
| Nov 2003 | 9.4 | $5.00 |
| Jul 2003 | 9.4 | $5.00 |
| Dec 2013 | 8.0 | $1.44 |
| Feb 2011 | 8.0 | $1.30 |
| May 2025 | 6.5 | $9.70 |
| May 2020 | 6.0 | $3.00 |
| Mar 2020 | 6.0 | $2.70 |
| Dec 2019 | 6.0 | $3.00 |
| Feb 2016 | 6.0 | $1.22 |
| Dec 2015 | 6.0 | $1.35 |
| Oct 2011 | 6.0 | $1.20 |
| Sep 2011 | 6.0 | $1.00 |
| Nov 2016 | 5.5 | $2.20 |
| Aug 2024 | 4.0 | $5.70 |
| Apr 2017 | 4.0 | $1.70 |
| Jul 2015 | 4.0 | $1.35 |
| Jun 2010 | 4.0 | $0.80 |