| Sold | Grade | Monthly Average |
| Jan 2020 | 8.0 | $12.75 |
| Nov 2013 | 8.0 | $9.23 |
| Jan 2013 | 8.0 | $9.23 |
| Dec 2012 | 8.0 | $10.25 |
| Aug 2012 | 8.0 | $10.25 |
| Aug 2011 | 8.0 | $10.25 |
| Feb 2011 | 8.0 | $12.75 |
| Aug 2016 | 6.0 | $14.00 |
| Aug 2013 | 6.0 | $7.80 |
| Aug 2025 | 4.0 | $6.30 |
| Apr 2025 | 4.0 | $6.30 |
| Oct 2022 | 4.0 | $6.30 |
| May 2021 | 4.0 | $6.30 |
| Jan 2020 | 4.0 | $6.30 |
| Oct 2018 | 4.0 | $5.67 |
| Jun 2016 | 4.0 | $6.30 |
| Aug 2014 | 4.0 | $7.99 |
| Jul 2012 | 4.0 | $5.20 |
| Dec 2025 | 2.0 | $3.10 |