| Sold | Grade | Monthly Average |
| Aug 2022 | 4.0 | $47.00 |
| Oct 2012 | 4.0 | $45.60 |
| Jun 2020 | 3.0 | $49.50 |
| Nov 2021 | 2.0 | $25.00 |
| Oct 2018 | 2.0 | $62.00 |
| Nov 2017 | 2.0 | $34.00 |
| Oct 2015 | 2.0 | $29.00 |
| Jan 2023 | 1.8 | $31.00 |
| Oct 2021 | 1.8 | $36.00 |
| Apr 2018 | 1.8 | $40.00 |
| May 2015 | 1.8 | $22.50 |
| Jul 2019 | 1.5 | $44.00 |
| Jun 2018 | 1.5 | $23.00 |
| Apr 2017 | 1.5 | $22.00 |
| Jun 2015 | 1.5 | $22.50 |
| Jul 2014 | 1.5 | $14.14 |
| Jan 2014 | 1.5 | $17.75 |
| Oct 2013 | 1.5 | $15.00 |