| Sold | Grade | Monthly Average |
| Oct 2025 | 3.0 | $26.00 |
| May 2025 | 4.5 | $62.00 |
| Oct 2024 | 4.5 | $48.00 |
| Feb 2024 | 4.5 | $53.50 |
| Mar 2021 | 4.0 | $34.00 |
| Oct 2019 | 4.0 | $65.00 |
| Jul 2018 | 3.0 | $39.90 |
| Sep 2025 | 2.5 | $15.00 |
| Dec 2017 | 2.0 | $30.00 |
| Feb 2021 | 1.8 | $32.00 |
| Apr 2017 | 1.0 | $15.00 |
| Sep 2015 | 1.0 | $4.00 |