| Sold | Grade | Monthly Average |
| Sep 2025 | 2.0 | $13.00 |
| Jun 2018 | 4.0 | $54.00 |
| Jul 2021 | 3.5 | $22.00 |
| Jan 2021 | 3.5 | $22.00 |
| Feb 2020 | 3.0 | $18.75 |
| Dec 2017 | 3.0 | $13.50 |
| Jul 2012 | 3.0 | $26.00 |
| Aug 2021 | 2.5 | $14.50 |
| Feb 2015 | 2.5 | $14.85 |
| Jun 2014 | 2.5 | $14.85 |
| Oct 2023 | 2.0 | $13.50 |
| Aug 2021 | 2.0 | $13.50 |
| Aug 2020 | 1.8 | $15.50 |
| May 2017 | 1.8 | $34.00 |
| Oct 2013 | 1.8 | $14.00 |
| Apr 2015 | 1.0 | $7.50 |