| Sold | Grade | Monthly Average |
| Oct 2023 | 6.0 | $6.00 |
| Jun 2012 | 9.4 | $12.00 |
| Aug 2011 | 9.4 | $8.49 |
| May 2019 | 8.0 | $8.00 |
| Mar 2019 | 8.0 | $8.75 |
| Aug 2014 | 6.5 | $6.49 |
| Jul 2023 | 6.0 | $6.00 |
| Feb 2018 | 6.0 | $3.90 |
| Mar 2018 | 5.5 | $5.49 |
| Jan 2017 | 5.5 | $25.00 |
| Dec 2014 | 5.0 | $5.00 |
| Jul 2018 | 4.0 | $4.00 |
| Jun 2015 | 4.0 | $4.00 |
| Aug 2022 | 2.0 | $2.00 |
| May 2013 | 0.5 | $1.10 |