| Sold | Grade | Monthly Average |
| Sep 2012 | 4.0 | $24.34 |
| Nov 2017 | 3.5 | $47.00 |
| Jun 2014 | 3.5 | $52.00 |
| May 2025 | 3.0 | $45.00 |
| Oct 2014 | 3.0 | $42.50 |
| Aug 2024 | 2.5 | $68.00 |
| May 2017 | 2.5 | $17.27 |
| Jun 2021 | 2.0 | $45.00 |
| Nov 2017 | 1.8 | $36.00 |
| Oct 2014 | 1.5 | $12.00 |
| Jan 2012 | 1.5 | $32.50 |
| Oct 2020 | 0.5 | $26.00 |