| Sold | Grade | Monthly Average |
| Oct 2021 | 4.0 | $35.00 |
| Sep 2016 | 3.5 | $12.51 |
| Dec 2018 | 3.0 | $23.50 |
| Dec 2015 | 3.0 | $13.75 |
| Jun 2011 | 3.0 | $23.50 |
| Jan 2022 | 2.5 | $25.50 |
| Feb 2019 | 2.5 | $26.00 |
| Feb 2012 | 2.5 | $19.75 |
| Jun 2021 | 2.0 | $21.00 |
| Feb 2019 | 2.0 | $16.50 |
| Dec 2018 | 2.0 | $16.50 |
| Mar 2018 | 2.0 | $16.50 |
| Jun 2017 | 2.0 | $15.68 |
| Dec 2015 | 1.8 | $10.10 |
| Dec 2009 | 1.8 | $12.00 |
| Dec 2014 | 1.0 | $12.40 |
| Nov 2017 | 0.5 | $4.32 |