| Sold | Grade | Monthly Average |
| Feb 2026 | 7.5 | $106.00 |
| Nov 2020 | 9.4 | $99.99 |
| Apr 2016 | 9.4 | $74.95 |
| May 2015 | 9.4 | $74.95 |
| Apr 2015 | 9.4 | $74.95 |
| Mar 2014 | 9.4 | $67.46 |
| Feb 2014 | 9.4 | $67.46 |
| Jan 2014 | 9.4 | $74.95 |
| Oct 2013 | 9.4 | $74.95 |
| Feb 2024 | 8.0 | $99.00 |
| Mar 2023 | 8.0 | $100.00 |
| Nov 2020 | 8.0 | $79.00 |
| Mar 2019 | 6.0 | $59.00 |
| Aug 2017 | 6.0 | $85.00 |
| Nov 2014 | 5.5 | $48.51 |
| Nov 2024 | 5.0 | $82.00 |