| Sold | Grade | Monthly Average |
| Jul 2025 | 4.5 | $106.00 |
| Oct 2017 | 9.4 | $99.99 |
| Apr 2012 | 9.4 | $80.00 |
| Jan 2017 | 8.0 | $79.00 |
| Mar 2010 | 8.0 | $64.00 |
| Nov 2022 | 7.5 | $80.00 |
| Nov 2024 | 6.5 | $130.00 |
| Mar 2024 | 6.0 | $115.50 |
| May 2019 | 6.0 | $53.10 |
| Mar 2013 | 6.0 | $43.20 |
| May 2010 | 6.0 | $48.00 |
| Feb 2020 | 4.0 | $40.00 |
| Sep 2019 | 4.0 | $40.00 |