| Sold | Grade | Monthly Average |
| Feb 2024 | 1.5 | $41.00 |
| Apr 2023 | 4.0 | $76.00 |
| Nov 2018 | 3.5 | $48.00 |
| Jun 2018 | 3.5 | $37.05 |
| Sep 2022 | 2.5 | $72.20 |
| Oct 2020 | 2.5 | $43.00 |
| Jan 2018 | 2.5 | $14.00 |
| May 2015 | 2.5 | $13.13 |
| May 2018 | 2.0 | $21.00 |
| Apr 2015 | 2.0 | $23.28 |
| Aug 2013 | 2.0 | $13.30 |
| Jul 2010 | 2.0 | $23.50 |
| Aug 2023 | 1.8 | $53.00 |
| Jul 2014 | 1.8 | $24.75 |
| Dec 2013 | 1.8 | $13.00 |
| Oct 2018 | 1.0 | $14.75 |
| Feb 2012 | 1.0 | $14.25 |
| Dec 2018 | 0.5 | $7.12 |
| Oct 2017 | 0.5 | $6.17 |