| Sold | Grade | Monthly Average |
| Dec 2019 | 8.0 | $8.75 |
| Aug 2017 | 8.0 | $8.00 |
| May 2016 | 8.0 | $12.50 |
| Jun 2013 | 8.0 | $4.80 |
| Apr 2019 | 6.5 | $7.00 |
| Apr 2023 | 6.0 | $6.00 |
| Jul 2020 | 6.0 | $6.50 |
| Aug 2018 | 6.0 | $6.00 |
| Dec 2017 | 6.0 | $3.60 |
| Nov 2012 | 6.0 | $3.30 |
| Aug 2012 | 6.0 | $3.00 |
| Nov 2010 | 6.0 | $1.80 |
| Apr 2016 | 5.5 | $5.49 |
| Apr 2019 | 4.0 | $4.40 |