| Sold | Grade | Monthly Average |
| Feb 2016 | 8.5 | $18.17 |
| Oct 2011 | 4.5 | $6.50 |
| Dec 2023 | 4.0 | $62.00 |
| Nov 2023 | 4.0 | $10.00 |
| Jan 2023 | 4.0 | $10.00 |
| Nov 2018 | 4.0 | $9.50 |
| Jun 2018 | 4.0 | $10.00 |
| May 2021 | 3.5 | $8.80 |
| Apr 2021 | 3.5 | $8.80 |
| Jul 2019 | 3.0 | $7.70 |
| Mar 2013 | 3.0 | $7.70 |
| Jun 2020 | 2.5 | $6.60 |
| Oct 2016 | 2.5 | $6.60 |
| Sep 2022 | 2.0 | $5.49 |
| Dec 2020 | 2.0 | $5.22 |
| Apr 2018 | 2.0 | $5.49 |
| Feb 2011 | 1.8 | $6.00 |
| May 2023 | 1.5 | $4.20 |
| Apr 2011 | 1.0 | $3.70 |