| Sold | Grade | Monthly Average |
| Oct 2024 | 1.5 | $13.00 |
| May 2023 | 5.0 | $83.00 |
| Mar 2019 | 4.0 | $21.00 |
| Dec 2021 | 3.0 | $39.00 |
| Jul 2018 | 3.0 | $22.00 |
| Apr 2016 | 3.0 | $29.50 |
| Mar 2023 | 2.5 | $20.00 |
| Feb 2023 | 2.5 | $29.00 |
| May 2022 | 2.5 | $25.00 |
| Sep 2016 | 2.5 | $51.00 |
| Jul 2014 | 2.0 | $19.75 |
| Apr 2020 | 1.8 | $29.95 |
| Apr 2016 | 1.8 | $25.00 |
| May 2010 | 1.8 | $18.50 |
| Dec 2012 | 1.5 | $13.00 |
| Jul 2019 | 1.0 | $25.00 |
| May 2022 | 0.5 | $9.49 |
| Feb 2021 | 0.5 | $9.49 |
| Sep 2017 | 0.5 | $9.49 |
| Sep 2014 | 0.5 | $2.00 |
| Oct 2021 | 0.3 | $3.80 |