| Sold | Grade | Monthly Average |
| Sep 2023 | 1.0 | $6.00 |
| Jan 2023 | 6.5 | $60.00 |
| Oct 2022 | 6.0 | $33.00 |
| Aug 2016 | 6.0 | $36.00 |
| Apr 2022 | 5.5 | $43.00 |
| Dec 2018 | 5.0 | $26.50 |
| Oct 2013 | 4.5 | $15.75 |
| Jan 2021 | 4.0 | $46.00 |
| May 2018 | 4.0 | $25.65 |
| Jul 2015 | 3.0 | $14.30 |
| Oct 2016 | 2.5 | $11.25 |
| May 2023 | 2.0 | $11.00 |
| Jul 2020 | 2.0 | $16.00 |
| Dec 2019 | 1.8 | $9.12 |
| Oct 2019 | 1.8 | $9.60 |
| May 2011 | 1.8 | $5.70 |
| Jul 2016 | 1.5 | $7.40 |
| Feb 2015 | 1.5 | $6.49 |
| Sep 2012 | 1.5 | $5.00 |
| Dec 2022 | 1.0 | $6.00 |
| Aug 2022 | 1.0 | $6.00 |