| Sold | Grade | Monthly Average |
| Jun 2026 | 2.5 | $29.00 |
| Jan 2018 | 4.0 | $21.00 |
| Nov 2015 | 4.0 | $26.99 |
| Apr 2014 | 4.0 | $42.00 |
| Mar 2015 | 2.5 | $34.50 |
| Feb 2015 | 2.5 | $17.50 |
| Aug 2021 | 2.0 | $22.00 |
| Aug 2019 | 2.0 | $16.00 |
| Aug 2015 | 2.0 | $29.00 |
| Sep 2021 | 1.5 | $15.00 |
| Nov 2017 | 1.5 | $6.00 |
| Oct 2011 | 0.5 | $9.00 |
| Jun 2022 | 0.3 | $2.40 |