| Sold | Grade | Monthly Average |
| Nov 2025 | 3.0 | $19.00 |
| Mar 2017 | 6.0 | $9.00 |
| Jan 2019 | 5.5 | $8.90 |
| Sep 2010 | 5.5 | $8.90 |
| Mar 2019 | 4.5 | $7.20 |
| Mar 2023 | 4.0 | $6.60 |
| Sep 2017 | 4.0 | $3.99 |
| Nov 2014 | 4.0 | $7.15 |
| Jun 2020 | 2.5 | $4.30 |
| Sep 2018 | 2.5 | $4.30 |
| Oct 2017 | 2.5 | $4.30 |
| Dec 2009 | 2.5 | $3.60 |
| Oct 2023 | 2.0 | $3.60 |
| Sep 2016 | 1.5 | $2.70 |