| Sold | Grade | Monthly Average |
| May 2011 | 7.0 | $3.30 |
| Aug 2021 | 6.0 | $6.00 |
| Jun 2021 | 6.0 | $6.00 |
| May 2013 | 5.0 | $1.40 |
| Sep 2011 | 5.0 | $1.20 |
| May 2019 | 4.5 | $2.60 |
| Aug 2023 | 4.0 | $4.00 |
| Sep 2022 | 4.0 | $4.00 |
| Mar 2022 | 4.0 | $4.00 |
| Aug 2021 | 4.0 | $4.00 |
| Mar 2021 | 4.0 | $4.00 |
| Mar 2019 | 4.0 | $2.40 |
| Nov 2018 | 4.0 | $2.65 |
| Oct 2012 | 4.0 | $1.14 |
| Jun 2023 | 3.5 | $3.20 |
| Nov 2017 | 3.5 | $1.95 |
| Sep 2011 | 3.0 | $1.10 |
| Sep 2012 | 2.5 | $1.35 |
| Nov 2022 | 2.0 | $2.00 |
| Aug 2022 | 2.0 | $2.00 |
| Aug 2018 | 2.0 | $1.70 |
| Nov 2011 | 1.8 | $1.10 |