| Sold | Grade | Monthly Average |
| Nov 2023 | 4.0 | $29.00 |
| Mar 2024 | 2.5 | $21.00 |
| Oct 2020 | 7.0 | $152.00 |
| Jun 2022 | 5.0 | $47.00 |
| Oct 2013 | 5.0 | $42.99 |
| May 2018 | 4.5 | $56.06 |
| Sep 2023 | 4.0 | $29.00 |
| Oct 2021 | 4.0 | $34.50 |
| Aug 2019 | 4.0 | $86.00 |
| Sep 2013 | 4.0 | $42.55 |
| Feb 2012 | 3.5 | $28.00 |
| Mar 2010 | 3.5 | $34.50 |
| Dec 2012 | 3.0 | $27.55 |
| Aug 2022 | 2.5 | $30.00 |
| Feb 2012 | 2.0 | $19.00 |
| Nov 2021 | 1.8 | $13.75 |
| May 2023 | 1.0 | $8.60 |