| Sold | Grade | Monthly Average |
| Feb 2014 | 7.5 | $30.50 |
| Jun 2022 | 6.5 | $28.00 |
| May 2020 | 5.5 | $43.00 |
| Jun 2021 | 5.0 | $22.00 |
| Nov 2021 | 4.5 | $18.76 |
| Jan 2020 | 4.5 | $26.00 |
| May 2022 | 4.0 | $18.00 |
| Jul 2019 | 4.0 | $19.75 |
| Sep 2020 | 3.0 | $19.00 |
| Mar 2018 | 3.0 | $13.75 |
| Feb 2024 | 2.0 | $8.55 |
| Dec 2022 | 2.0 | $9.00 |
| Aug 2020 | 2.0 | $11.50 |
| Oct 2020 | 1.5 | $6.30 |