| Sold | Grade | Monthly Average |
| Nov 2013 | 5.5 | $8.90 |
| May 2017 | 4.5 | $7.20 |
| Oct 2015 | 4.5 | $7.20 |
| May 2023 | 4.0 | $6.60 |
| Jul 2021 | 4.0 | $6.27 |
| Jan 2019 | 4.0 | $6.60 |
| May 2016 | 4.0 | $11.00 |
| Jan 2018 | 3.5 | $2.20 |
| Jun 2018 | 3.0 | $5.50 |
| Sep 2020 | 2.0 | $3.60 |
| Mar 2018 | 2.0 | $3.42 |
| Sep 2022 | 1.0 | $2.00 |
| Dec 2009 | 1.0 | $1.80 |