| Sold | Grade | Monthly Average |
| Apr 2024 | 4.0 | $18.50 |
| Sep 2021 | 5.5 | $50.00 |
| Mar 2020 | 5.5 | $15.00 |
| Jun 2019 | 5.5 | $42.00 |
| Apr 2012 | 5.5 | $10.75 |
| Jan 2021 | 5.0 | $29.00 |
| Nov 2019 | 5.0 | $22.50 |
| May 2015 | 5.0 | $15.00 |
| Oct 2012 | 5.0 | $9.60 |
| Jun 2016 | 4.5 | $10.45 |
| Feb 2023 | 4.0 | $32.00 |
| Nov 2022 | 4.0 | $21.60 |
| Jul 2016 | 4.0 | $9.50 |
| Oct 2017 | 3.5 | $8.36 |
| Feb 2022 | 2.5 | $16.00 |
| Jul 2014 | 2.5 | $8.20 |
| Jan 2015 | 2.0 | $6.80 |
| Feb 2013 | 2.0 | $4.40 |
| Mar 2016 | 1.5 | $4.49 |