| Sold | Grade | Monthly Average |
| Jun 2023 | 4.5 | $211.00 |
| May 2020 | 3.5 | $87.00 |
| Jan 2019 | 3.0 | $44.00 |
| Apr 2018 | 3.0 | $103.50 |
| Jan 2024 | 2.0 | $165.00 |
| Sep 2010 | 2.0 | $48.00 |
| Mar 2025 | 1.0 | $44.00 |
| May 2020 | 0.5 | $16.75 |
| May 2019 | 0.5 | $33.25 |
| Feb 2018 | 0.5 | $24.00 |
| Apr 2017 | 0.5 | $35.00 |
| Jul 2015 | 0.5 | $18.25 |
| Sep 2014 | 0.5 | $16.00 |