| Sold | Grade | Monthly Average |
| Dec 2025 | 6.0 | $35.10 |
| Mar 2014 | 9.4 | $49.49 |
| Dec 2010 | 9.4 | $40.00 |
| Mar 2025 | 8.5 | $43.00 |
| Jan 2025 | 8.5 | $39.00 |
| Aug 2023 | 8.5 | $21.00 |
| Apr 2025 | 8.0 | $62.00 |
| Mar 2023 | 8.0 | $119.00 |
| Sep 2022 | 8.0 | $58.00 |
| Jul 2018 | 8.0 | $54.00 |
| Feb 2011 | 8.0 | $32.00 |
| Feb 2017 | 4.0 | $22.00 |
| Nov 2012 | 4.0 | $16.00 |