| Sold | Grade | Monthly Average |
| Aug 2025 | 8.0 | $7.99 |
| Dec 2011 | 9.8 | $9.20 |
| Jul 2018 | 9.4 | $9.95 |
| Apr 2016 | 9.4 | $9.95 |
| Jun 2013 | 9.4 | $9.95 |
| Dec 2011 | 9.4 | $5.40 |
| Dec 2011 | 9.4 | $3.70 |
| Sep 2010 | 9.4 | $4.70 |
| Aug 2010 | 9.4 | $5.00 |
| Feb 2010 | 9.4 | $4.95 |
| Jan 2010 | 9.4 | $4.95 |
| Dec 2009 | 9.4 | $4.95 |
| Oct 2009 | 9.4 | $4.95 |
| Jul 2019 | 8.0 | $7.99 |
| Jan 2019 | 8.0 | $7.99 |
| Oct 2016 | 8.0 | $7.99 |
| Jul 2022 | 6.0 | $5.99 |
| Aug 2021 | 6.0 | $5.99 |