| Sold | Grade | Monthly Average |
| Nov 2025 | 0.5 | $13.00 |
| Jun 2018 | 5.0 | $76.00 |
| Jul 2016 | 4.0 | $20.00 |
| Dec 2015 | 4.0 | $45.00 |
| Feb 2015 | 4.0 | $25.00 |
| Mar 2023 | 3.0 | $45.60 |
| Sep 2021 | 3.0 | $52.00 |
| May 2021 | 3.0 | $32.30 |
| Nov 2021 | 2.5 | $45.00 |
| Dec 2018 | 2.5 | $30.00 |
| Mar 2024 | 2.0 | $36.00 |
| Feb 2016 | 2.0 | $21.00 |
| Apr 2012 | 2.0 | $17.50 |
| Aug 2017 | 1.8 | $24.00 |
| Nov 2011 | 1.8 | $26.50 |
| Jun 2025 | 1.5 | $35.00 |
| Oct 2017 | 1.5 | $14.25 |
| Dec 2013 | 1.5 | $11.64 |
| Nov 2010 | 1.0 | $16.50 |
| Oct 2019 | 0.5 | $4.80 |
| Jul 2012 | 0.1 | $2.00 |