| Sold | Grade | Monthly Average |
| Feb 2015 | 6.0 | $16.00 |
| Mar 2022 | 4.0 | $10.50 |
| Dec 2019 | 4.0 | $9.98 |
| Jun 2019 | 3.5 | $6.80 |
| Mar 2016 | 3.0 | $6.30 |
| Dec 2015 | 3.0 | $6.30 |
| Jun 2015 | 3.0 | $2.40 |
| Apr 2014 | 3.0 | $6.30 |
| Aug 2023 | 2.5 | $6.10 |
| Jun 2018 | 2.0 | $5.30 |
| Jun 2015 | 2.0 | $2.70 |
| Nov 2019 | 1.8 | $3.06 |
| May 2015 | 1.8 | $1.50 |
| Dec 2014 | 1.8 | $4.30 |