| Sold | Grade | Monthly Average |
| Feb 2017 | 5.5 | $67.00 |
| Jul 2022 | 4.0 | $57.00 |
| Jun 2021 | 3.5 | $56.00 |
| Nov 2019 | 3.5 | $39.00 |
| Mar 2019 | 3.0 | $65.00 |
| Feb 2018 | 3.0 | $53.00 |
| Oct 2015 | 2.5 | $44.33 |
| Aug 2022 | 1.8 | $41.00 |
| May 2021 | 1.8 | $33.00 |
| Mar 2021 | 1.8 | $35.00 |
| Sep 2017 | 1.8 | $28.50 |
| Jun 2017 | 1.8 | $30.00 |
| Apr 2017 | 1.8 | $30.00 |
| Sep 2013 | 1.8 | $23.00 |
| Sep 2010 | 1.5 | $19.75 |
| Feb 2015 | 1.0 | $15.40 |
| Feb 2018 | 0.5 | $11.00 |