| Sold | Grade | Monthly Average |
| Jan 2024 | 2.5 | $45.00 |
| Feb 2016 | 3.5 | $27.95 |
| Sep 2019 | 3.0 | $65.00 |
| Aug 2019 | 3.0 | $43.23 |
| Jan 2011 | 3.0 | $27.50 |
| Jun 2010 | 3.0 | $27.50 |
| Jul 2019 | 2.5 | $84.00 |
| Nov 2018 | 2.5 | $49.95 |
| Apr 2013 | 2.5 | $28.05 |
| Apr 2017 | 2.0 | $24.50 |
| Jun 2015 | 1.8 | $23.25 |
| Jan 2014 | 1.5 | $15.75 |
| Feb 2016 | 1.0 | $14.50 |